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14th Beam Telescopes and Test Beams Workshop
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Europe/Zurich
Erbacher Hof
Grebenstraße 24-26, 55116 Mainz, Germany
Achim Gerold Denig,
Anastasiia Velyka
(Deutsches Elektronen-Synchrotron (DE)),
Federica Oliva
(The University of Edinburgh (GB)),
Finn King
(Deutsches Elektronen-Synchrotron (DE)),
Gianpiero Vignola
(Deutsches Elektronen-Synchrotron (DE)),
Jan-Hendrik Arling
(Deutsches Elektronen-Synchrotron (DESY)),
Jannik Petersen
(Institute for Nuclear Physics Mainz),
Lucia Masetti
(Johannes Gutenberg Universitaet Mainz (DE)),
Peter Svihra
(Czech Academy of Sciences (CZ), Czech Technical University in Prague (CZ)),
Tamar Zakareishvili
(Univ. of Valencia and CSIC (ES)),
Theodoros Manoussos
(CERN),
Younes Otarid
(CERN)
Description
The 14th edition of the Beam Telescopes and Test Beams Workshop will be held in Mainz, Germany.
This workshop will cover a wide range of topics related to test beams for detector studies in tracking detectors, calorimetry, and beyond. It aims at bringing together both experts and newcomers from various fields. There will be a combination of presentations by experienced users, results from recent test beam studies, and tutorials to teach the software required to analyze the results. Please have a look at the last events to get a more detailed impression of the workshop's content:
In order not to miss any announcements, please subscribe to the e-group 'BeamTelescopesandTestBeams-Announcements' at https://e-groups.cern.ch.
In case you experience any problem during subscription, please contact bttb-ws@desy.de.
If you find yourself left with any questions on the upcoming workshop, please do not hesitate to contact us via bttb-ws@desy.de.
During this year's edition, there will be two guided tours offered to the Mainz Microtron (MAMI) electron accelerator and the nuclear research reactor TRIGA. Please note that the tour at the TRIGA can only be offered to a maximum of 30 people and requires special registration for a background check, which is obligatory by law. Further details will be announced.
We are very much looking forward to an interesting workshop!
EXTENDED abstract submission deadline: Match 1st, 2026
EXTENDED registration deadline: March 27th, 2026
Fee payment deadline: March 29th, 2026
Participants
Surveys
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Registration: Welcome
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Welcome
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1
Welcome from hostSpeaker: Prof. Niklaus Emanuel Berger (JGU Mainz)
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2
Welcome from IACSpeaker: Jan-Hendrik Arling (Deutsches Elektronen-Synchrotron (DE))
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Welcome from LOCSpeaker: Theodoros Manoussos (CERN)
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Tutorial introductionSpeaker: Anastasiia Velyka (Deutsches Elektronen-Synchrotron (DE))
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1
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Lecture
Lectures to be offered
- The Mainz Energy-Recovering Superconducting Accelerator MESA - an Overview
- Overview of DRDs
- A practical guide to beam telescopesConvener: Peter Svihra (Czech Academy of Sciences (CZ), Czech Technical University in Prague (CZ))-
5
The Mainz Energy-Recovering Superconducting Accelerator MESA - an Overview
The Mainz Energy-Recovering Superconducting Accelerator (MESA) is currently under construction on the campus of Johannes Gutenberg University Mainz and is scheduled to begin operation in 2027. In this talk, an overview of the operating principles and the experimental program of the MESA experiments MAGIX, P2, and DarkMESA will be presented. As will be shown, the high beam intensities of the MESA accelerator, which will accelerate an electron beam of up to 155 MeV, provide the basis for unique experiments in the fields of nuclear, hadron, and particle physics.
Speaker: Achim Denig (JGU Mainz)
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5
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ExperimentsConvener: Peter Svihra (Czech Academy of Sciences (CZ), Czech Technical University in Prague (CZ))
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6
Application of ALPIDE Detectors in a Telescope Configuration in SFQED Experiments
Strong-Field Quantum Electrodynamics (SFQED) experiments probing nonlinear Breit–Wheeler pair production require precise detection and reconstruction of electron–positron pairs generated in ultra-intense laser–matter interactions. We present the application of ALPIDE pixel sensors arranged in a telescope configuration as a compact, high-resolution tracking system for positron detection in high-background environments. The detectors were installed and operated at the FACET-II E-320 experiment as well as at the ELI-NP and APOLLON laser facilities. Several prototype configurations and readout schemes were developed to address the specific requirements of these experiments. Monte Carlo simulations and first experimental results will be presented.
Speaker: Oleksandr Borysov (Weizmann Institute of Science (IL)) -
7
The MUonE detector at CERN
The goal of the MUonE experiment at CERN is to help clarify the current picture of results concerning the anomalous magnetic moment of the muon, where tensions remain among Standard Model predictions based on different methods and inputs. The method is based on the precision measurement of the differential cross section of elastic μe scattering, obtained using the CERN SPS M2 muon beam, which delivers high‑intensity 160 GeV muons onto fixed targets made of light materials. The project has evolved over the past years through phases of increasing complexity. In the summer of 2025, a pilot run (Phase‑1) was carried out over two months of data taking, using a reduced but fully functional version of the detector. This setup consisted of three tracking stations, an electromagnetic calorimeter, a muon detector, a timing detector for measuring the muon arrival time, and a momentum spectrometer installed in the beamline upstream of the apparatus. The detectors were integrated into a new DAQ system performing event building and online selection on FPGAs at a frequency of 40 MHz. The results of the pilot run will be discussed, presenting preliminary findings on detector performance and future prospects.
Speaker: Aldo Arena (Universita e INFN Trieste (IT)) -
8
KOALA at GSI CaveC
The elastic proton-proton scattering at low momentum transfer can be described by a combination of Coulomb interaction, hadronic interaction and an interference term. While the Coulomb part is well understood and dominant for very small momentum transfer, the interference part is a mostly phenomenological description where the available data to extract parameters in the range of 1 GeV/c to 10 GeV/c is rather limited. A measurement at GSI utilizing the SIS18 beam with up to 4.2 GeV/c is currently in preparation for spring 2027. To reduce uncertainties all particles involved in the scattering process will be measured using silicon pixel sensors (HV-MAPS). The scattered proton trajectory will be measured in vacuum using a new small beam telescope developed in Mainz. For the recoil proton a new setup measuring close to the target is under construction in Mainz as well, while the precise beam position will be measured using an existing telescope currently in Bochum. Together with existing PANDA targets this will allow a precision measurement with good control of systematic errors. The experiment and its detectors will be presented.
Speaker: Dr Heinrich Leithoff (Helmholtz-Institute Mainz)
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6
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Coffee break
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FacilitiesConvener: Jan-Hendrik Arling (Deutsches Elektronen-Synchrotron (DE))
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9
CERN Beamlines and Experimental Facilities
This presentation gives a concise overview of the fixed target and test beam facilities at CERN’s North and East Area. Protons with a momentum of 24 GeV/c at the PS and with 400 GeV/c at the SPS produce typically hadrons, electrons, and muons over a wide range of momenta. In this talk, the main features of the unique North Area and East Area secondary beamlines are introduced, including the available momentum ranges, particle species, and beam intensities in the different experimental areas. The operational flexibility provided by the T2 and T4 wobbling stations in the North Area, as well as the multi-target configurations and upgraded infrastructure of the East Area, are highlighted. In addition, CERN’s irradiation facilities HiRadMat, GIF++, IRRAD, and CHARM are briefly presented, illustrating their roles in material studies, detector qualification, and radiation hardness testing. The talk aims to guide users in selecting and efficiently exploiting CERN beam facilities for their experiments.
Speaker: Seyma Esen (CERN) -
10
New LESA Test Beam at SLAC’s End Station A
SLAC is developing an electron beamline for End Station A, fed from our superconducting Linac LCLS-II-HE. The new beamline enables a continuation of the ESTB program, which ended in 2019, with new high-rate capabilities. A successful test run was conducted end of 2025 before a long shutdown. We expect the new LESA beam line to be operational in Summer 2027, delivering 8 GeV electrons to Users. Beam parameters are varied, from single and multiple electrons to full bunches of up to 100pC at 10th, 100th and kHz rates, potentially even special bunch patterns at nsec bucket distances. We will present the results of the 2025 test run and the expected future capabilities and available experimental infrastructure.
Speaker: Carsten Hast -
11
The DESY II Test Beam Facility
The DESY II Test Beam Facility is looking back at successful year 2025. A review is given over last year's beam period and the current running period 2026. This includes the current status of the facility as well as recent developments of the infrastructure, improvements for the user community and noteworthy events.
In addition, the current status of the studies to use the direct DESY II beam for irradiation and experiments are presented.
The presentation also includes the last updates on the future of the facility after the upgrade of the accelerator complex for the planned synchrotron light source PETRA IV.Speaker: Adrian Herkert (Deutsches Elektronen-Synchrotron (DE)) -
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Capabilities, Upgrades, and User-Oriented Operation of the INFN Beam Test Facility at LNF
The Beam Test Facility (BTF) at the National Laboratories of Frascati provides highly flexible electron and positron beams tailored to a wide range of experimental needs. The beam, extracted from the DA$\Phi$NE LINAC, can operate at rates of up to 49 bunches per second, with intensities ranging from a single particle to 10$^{10}$ particles/s. Secondary beams cover energies from 25 to 780 MeV for electrons and up to 550 MeV for positrons.
BTF comprises two experimental areas: BTFEH1, designed for high-intensity and long-duration experiments, and BTFEH2, optimized for low-intensity operation up to 10$^6$ particles per second. Both halls are equipped with remotely controlled movable tables, comprehensive beam diagnostics, and essential services such as laser alignment systems, networking, high-voltage infrastructure, and gas distribution lines, providing full experimental support with continuous 24/7 user assistance.
A key strength of BTF is its user-oriented design, allowing rapid and straightforward beam tuning to accommodate specific experimental requirements, even during data taking. This presentation will describe recent upgrades, including the development of a new control system based on Epik8s (EPICS on Kubernetes), as well as improvements in beam size and energy loss achieved by replacing the 500 µm BeO exit window with a 120 $\mu$m Anticorodal window.
Speaker: Mr Luca Gennaro Foggetta (INFN) -
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Status and plan of testbeam line at KEK
An electron test beam facility at KEK Tsukuba campus with beam momentum up to 5.8 GeV has been established since 2022. The beam is extracted from PF-AR electron storage ring, and it is available for sensor testing for three periods (May-June, Oct-Dec and Feb-Mar) in each year in total about 5.5 months including period of the beam shutdown at CERN starting middle of 2026. In 2025, we have modified the beam transfer magnet configuration. As the result, the rate of electron beam has been improved by a factor of 1.5.
Also we are investigating a hadron test beam line at KEK Tokai campus (J-PARC). A test measurement has been performed to measure amount of charged particles. We are planning to extend this effort to measure momentum distribution by introducing a dipole magnet.
In this report, we will report these status and plans related to the test beam line at KEK.Speaker: Yuji Enari (KEK High Energy Accelerator Research Organization (JP)) -
14
Progress of China’s First Proton Test Beam HPES
A proton test beam, HPES, is currently under construction in Guangdong, China. Designed to deliver a proton beam with energy from 0.8 to 1.6 GeV, HPES aims to support the development and characterization of advanced particle detector technologies. To enhance user capabilities, the experiment terminals are equipped with a high-resolution proton beam telescope and a dedicated proton energy measurement device. In addition, a custom trigger system, composed of a trigger device and a trigger logic unit, has been developed to ensure precise event alignment between the Device Under Test (DUT) and the reference detectors. This presentation will provide an overview of HPES and its detector systems, along with recent results from prototype tests.
Speaker: Dr Yuhang Guo (Institute of High Energy Physics, CAS)
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9
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Reception
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Lecture
Lectures to be offered
- The Mainz Energy-Recovering Superconducting Accelerator MESA - an Overview
- Overview of DRDs
- A practical guide to beam telescopesConvener: Tamar Zakareishvili (Univ. of Valencia and CSIC (ES))-
15
Future Detector R&D - An Overview of the DRDs and the European Strategy for Particle Physics
The European Strategy for Particle Physics identifies detector R&D as a key enabling component for the future experimental program in high-energy physics and foresees the Future Circular Collider as the next flagship facility. In particular, the electron–positron stage, FCC-ee, is designed as a precision machine that imposes stringent demands on detector performance. Vertex and tracking detectors must achieve extremely high spatial resolution while maintaining an ultra-low material budget to enable precise flavor tagging and high-accuracy electroweak measurements.
Moreover, non-accelerator particle physics, as well as astroparticle and nuclear physics, benefit from a strategic and coherent R&D approach.
To coordinate long-term research on new sensing techniques and technology development across these domains and the community, a structured Detector Research and Development (DRD) program has been established. Based on the ECFA Detector Roadmap, which was produced as a direct outcome of the 2020 European Strategy for Particle Physics, eight DRD collaborations have been founded. These collaborations organize R&D activities across key detector domains and provide a common framework for collaboration between institutes and experiments, before experiment-specific engineering takes over. Shared infrastructure, coordinated technology development, and cross-disciplinary synergies support efficient resource use, reduce technological risk, and ensure that mature detector solutions are available for future large-scale physics facilities.
This talk shows the activities of all DRD collaborations with a focus on silicon sensors for vertexing and tracking detectors.Speaker: Thomas Bergauer (Austrian Academy of Sciences (AT))
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15
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Coffee break
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Test Beam AnalysisConvener: Finn King (Deutsches Elektronen-Synchrotron (DE))
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16
Development and integration of a MAPS-based tracking telescope for the ALICE 3-TOF and ePIC-dRICH beam tests
The sensor R&D for the future ALICE 3 and ePIC experiment is pushing the knowledge and potential
uses of silicon sensors towards new frontiers, such as in the case of the CMOS Low-Gain Avalanche-Diode (CMOS-LGAD) and Silicon PhotoMultiplier (SiPM) technologies.
At INFN Bologna, the ALICE group is actively involved in the R&D for the Time-Of-Flight (TOF) detector of the future ALICE3 experiment at the LHC, while the ePIC group is responsible for the development of the SiPM readout plane of dual-radiator RICH (dRICH) of the ePIC experiment at the EIC. During the past two years, the ALICE and ePIC teams at INFN Bologna have collaborated on the construction and testing of a tracking telescope to support their respectively beam tests.
The telescope, consisting of four ALTAI MAPS (Monolithic Active Pixel Sensors) chips derived from the ALPIDE sensor used for the ALICE-ITS2 detector, was validated for the first time in 2024, first with cosmic rays and then with a 10 GeV positive hadron beam at CERN PS, demonstrating tracking performance in line with the expected nominal values. A 5 µm spatial resolution per single sensor and efficiency above 99% in the working region in terms of charge threshold was measured.
In the present telescope configuration (4 ALTAI planes equally spaced by 2.5 cm) the track direction can be reconstructed with with a 0.2 mrad resolution. The telescope was used in 2025 during the ALICE 3 beam tests at CERN PS and SPS, enabling the possibility to do precision study of the efficiency of different sensors types as a function of the impact position on the devices.
In November 2025, the telescope was successfully integrated and used to support the beam-test of the ePIC-dRICH collaboration at CERN SPS, in which a large-area, 2048-channel prototype of the ePIC dual-RICH, was successfully tested. The dRICH photodetector prototype has been developed by INFN and consists of 8 Photon Detection Units (PDUs), each comprising 256 SiPM sensors, cooling infrastructure and TDC electronics within a compact volume. The tracking information obtained during the beam test using the ALTAI telescope has given an important contribution during the beam-test data taking and to the data analysis.In this talk, the integration of the ALTAI telescope into the beam test setups of ALICE 3-TOF and ePIC-dRICH will be introduced and presented. The materials and methods used to integrate the telescope and its DAQ system (the EUDAQ2 framework) within the DAQ systems and Detector Under Test used in the ALICE 3-TOF and ePIC-dRICH setups will be described, as well as the methods used for the analysis with the tracking performed using the Corryvreckan software. The main obtained results will be presented and discussed.
Speaker: Mr Riccardo Ricci (INFN, Bologna (IT)) -
17
Scaling up test-beam measurements of detector material via multiple scattering with the MONSTAR telescope
Precise knowledge of detector material for particle detectors is crucial both during the R&D phase and during operation as an input to simulations, in particular for tracking detectors in which both momentum and position resolution are highly sensitive to traversed material. Most past and current projects rely on coarse-grained estimates derived from a nominal design, the accuracy of which can be heavily impacted by difficult-to-estimate components or physical realities of the final detector construction, often resulting in uncertainties on the detector model exceeding O(10%). Direct radiation length measurements of individual components or larger assemblies as part of the R&D phase for new detectors can assist in allowing well-informed choices of materials and components, and in substantially reducing final uncertainties on the detector model.
This talk will introduce a mature methodology for measuring material content via the multiple scattering of electrons at test-beams. The purpose-built low-mass MONSTAR telescope will be introduced, alongside a discussion of the relationship between telescope design, beam energy, and available measurement range supported by simulation results. Two testbeam campaigns will be discussed, including a recently published exploratory measurement of an ATLAS ITk Pixel module at the CERN PS T9 beam 1, and a follow-up campaign at the PSI PiM1 beamline that measured over 500 cm$^2$ of detector samples (modules, support structures, and electrical interconnects), including samples from ATLAS and Mu3e as well as dedicated calibration samples. Results from both campaigns will be presented alongside an overview of the analysis methodology and tools, a comparison of theory and simulation- or calibration-based models for multiple scattering, and a discussion of the scalability and wider applicability of the methodology.
1 Koch, S.F., Moser, B., Lindner, A. et al. Measuring the ATLAS ITk pixel detector material via multiple scattering of positrons at the CERN PS. Eur. Phys. J. C 85, 381 (2025).
Speaker: Simon Florian Koch (CERN) -
18
Time over Threshold Measurments with babyMOSS Beam Telescope
During the upcoming LHC Long Shutdown 3 the ALICE experiment will upgrade
its 3 Inner Tracking System (ITS2) layers to ITS3. The final design of ITS3 will
have silicon sensors of up to 27 cm × 10 cm, thinned to about 50µm and bent
into a cylindrical shape. The sensor prototypes developed are MOnolithic Stitched
Sensors (MOSS) that are made of 10 Repeated Sensor Units (RSU). A single-RSU,
referred to as a babyMOSS, is manufactured to facilitate in- beam characterization
and irradiation studies. Each babyMOSS has a top and bottom half-unit (HU). The
difference between these half units is the pitch of the pixels, with the top HU having
a pixel pitch of 22.5µm and the bottom HU having a pixel pitch of 18µm.
The design of the pixel features a low-doped, deep n-type implant in the pixel,
which helps to deplete the pixel over its full area. Implants of neighboring pixels
are separated by a gap, which enhances charge collection near pixel edges. For a
subset of sensors, and only for pixels with a 22.5 µm pitch, the pixel-to-pixel gap
width was increased from the baseline 2.5 µm to 5.0 µm.
This presentation provides results from the test beam on babyMOSS chips per-
formed in September 2025 at the CERN PS with a telescope composed of six baby-
MOSS tracking planes. For this testbeam, two babyMOSS sensors representing dif-
ferent pixel variants were tested with negatively charged pions of 7 GeV. A cooling
plate was provided to keep the babyMOSS devices under test at a constant tem-
perature of 27◦C. Time over Threshold (ToT) data were collected in the testbeam,
along with source and pulsing data separately for a ToT analysis. This analysis is
to study charge collection in the babyMOSS prototype for different reverse biases
and for different pixel variants.Speaker: Macaila Schafer (Lund University (SE)) -
19
Sensor modules for the CMS Barrel Timing Layer: new test beam performance results
The MIP Timing Detector (MTD) is a new subsystem being developed for the Phase-2 upgrade of the Compact Muon Solenoid (CMS) experiment at the CERN LHC. It is designed to measure the time of arrival of charged particles with a precision of 30–60 ps. This precise timing information will significantly mitigate the effects of the high pileup expected at the High-Luminosity LHC (HL-LHC), thereby enhancing the overall event reconstruction capabilities of CMS. The central region of the MTD, known as the Barrel Timing Layer (BTL), employs LYSO:Ce scintillating crystal bars coupled to silicon photomultipliers (SiPMs). In this talk, we present an overview of the BTL design and report on the latest results from the 2025 CERN test beam campaign, which used final module prototypes read out with the final-design front-end electronics. We will also discuss the performance of modules with variations in light yield, gluing quality and energy resolution, and provide new insights into the expected operation of the detector under realistic experimental conditions.
Speaker: Claudio Quaranta (Peking University (CN)) -
20
Test beam experiences with Phase 2 CMS BRIL and Inner Tracker: detectors, front-end, back-end, and infrastructure
The present contribution focuses on the last two years of test beam campaign performed in the context of the CMS Phase 2 luminosity, at the CERN-PS T9 beamline. The systems under test were both the new luminometer Fast Beam Condition Monitor (FBCM), and the new Inner Tracker pixel detectors based on the RD53B ASIC.
The FBCM detector is based on arrays of 6 square silicon pads of the size of about 1.9 mm. A dedicated ASIC was developed in order to read and control the sensor, providing as output a fast asynchronous comparator signal which is then processed by the lpGBT ASIC to compute precise Time of Arrival (ToA) and Time over Threshold (ToT) digital output. This is then sent via optical fiber after VTRx+ electrical to optical conversion to the back-end FPGA boards. The used Inner Tracker pixel sensors had a cell size of either 100×25 μm$^2$ and 50×50 μm$^2$, for a total 145152 pixels and a detector size of roughly 2×2 cm$^2$. The sensor was read out by the RD53B ASIC, counting 432 × 336 channels and performing signal digitization directly on chip: the digital output was both directly processed electrically or converted optically using the lpGBT ASIC and VTRx+.
Other than testing the performance of the FBCM detector, a conspicuous part of the campaign was dedicated to the development and optimization of the back-end firmware and readout. The focus for FBCM has been to correctly readout and histogram in firmware both ToT and ToA data, producing lightweight online histogram output: this will be the final design for CMS Phase 2. The possibility of accessing FBCM raw data was also added in firmware, pairing the FBCM Silicon pads both to a MIMOSA 6-planes telescope and a Inner Tracker pixel detector using an AIDA Trigger Logic Unit (TLU).
This setup was critical to estimate the detector performance of fresh and irradiated FBCM sensors. Concerning the Inner Tracker, other than using it to create a precise trigger mask for the FBCM detector, dedicated firmware algorithms for online clustering of the pixel data have been tested successfully.
Back-end architecture and online software control saw important advancements during the whole campaign: starting from back-end electronics based on the μTCA standard, for which the first prototypes of firmware and software DAQ have been developed and tested successfully, we moved to the final ATCA standard. ATCA required the use of a more sophisticated architecture, in which a Data and Timing Hub (DTH) board was used for timing, and the Apollo ATCA board was used for both Inner Tracker and FBCM front-end readout and control.
Dedicated firmware and software were developed to process data, calibrate and control the detectors with the new back-end architecture, and dedicated PCBs were also developed in order to enable triggering using the Apollo board and Inner Tracker front-end. This was the first beam physics data acquired with ATCA back-end for both FBCM and Inner Tracker.
The DAQ was based on dedicated IPBus firmware and software: detector performance was extracted, allowing to probe expected out-of-time events for the future Inner Tracker, and charge collection efficiency loss for FBCM. Overall, the system looks promising and with broad applications in test beam environments; further improvements will be tested in a final 2026 campaign.
Speaker: Michelangelo Pari (CERN) -
21
Characterization of an Enhanced Lateral Drift (ELAD) Sensor Prototype
The development of vertex and tracking detectors for future lepton colliders faces various challenges regarding time and position resolution while maintaining a low material budget and the capability to process high particle rates. In this context, one approach to improve the spatial resolution is to utilise the effect of charge sharing. Here, the charge carriers generated in the sensor volume are shared between neighbouring readout electrodes, thus forming a cluster. The cluster size indicates the degree of charge sharing between adjacent readout electrodes while the ratio of the signal amplitudes associated with the cluster gives information about the hit position of the traversing particle.
By applying a magnetic field and exploiting the Lorentz drift of the generated charge carriers in the sensor volume, an increase in charge sharing can be observed. The same effect can be achieved geometrically by rotating the sensor. However, neither approach is suitable for vertex detectors, since the effect is not sufficient in the case of thin sensors.
The enhanced lateral drift (ELAD) sensor prototype addresses the aforementioned requirements by featuring a multiple-layer design including buried doping implants. The deep implants generate an additional lateral electric field inside the sensor bulk, resulting in increased charge sharing which is indicated by an increased amount of clusters of size two. Through simulations, the sensor design was optimised to allow for position-dependent charge sharing close to the theoretical optimum, which results in an improved impact position interpolation.
This talk presents first results of the characterisation of an ELAD sensor prototype including preliminary results of test beam studies carried out at the DESY II test beam facility. These studies showed the aforementioned increased amount of clusters of size two, thus indicating an increase in charge sharing compared to strip sensors without ELAD implants.
Speaker: Judith Schlaadt
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16
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Lunch
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Hands-on tutorials
Tutorials to be offered:
- Introduction to KiCAD PCB design software
- The Corryvreckan Test-Beam Reconstruction Framework --- Hands-on
- Silicon Detector Monte Carlo Simulations with Allpix Squared
- Constellation Hands-on: Control and DAQ Framework for Test Beams and Beyond-
22
Constellation Hands-on: Control and DAQ Framework for Test Beams and Beyond
Constellation is a control and data acquisition framework for small-scale experiments like test beams or lab characterizations. It provides the necessary functionality for such environments like synchronous operation of several devices, unified configuration interface, logging, telemetry, data transmission and error handling. So-called satellites form the basis of Constellation, which are autonomous programs that control an instrument.
This tutorial provides a short introduction into Constellation and its core principles. The operation of multiple satellites, including configuration and monitoring, is covered as well. Finally, participants of the tutorial will implement their own satellite in Python for real hardware provided for the tutorial.
Speaker: Stephan Lachnit (Deutsches Elektronen-Synchrotron (DE)) -
23
Tutorial: Introduction to KiCAD PCB design software
This lecture (20 Min) and hands-on workshop (60 Min) introduce the fundamentals of printed circuit board (PCB) design using KiCad, with a focus on slow-control applications in laboratory environments. KiCad, an open-source electronic design automation (EDA) tool is widely used by physicists and research institutions worldwide.
Participants are guided through the complete workflow from schematic capture and component selection (THT and SMD) to PCB layout, Electrical and Design Rule Checks, and preparation for manufacturing. The theoretical part covers key design constraints such as current, frequency limits, PCB materials, and basic impedance considerations.
In the practical session, participants design a simple flashlight PCB step by step and gain insight into reflow soldering processes. Optional topics include custom symbol and footprint creation and a WiFi-based slow-control example using a Raspberry Pi Pico.
By the end of the workshop, participants are able to independently design and prepare a functional PCB for laboratory applications.
Speakers: Dr Peter-Bernd Otte, Peter-Bernd Paul Otte (Johannes Gutenberg Universitaet Mainz (DE))
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22
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Coffee break
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Tours
Tours:
- MAMI Tour
- TRIGA Tour-
24
MAMI Tour
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25
TRIGA Tour
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24
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Poster session Helmholtz-Institute Mainz
Helmholtz-Institute Mainz
Groundfloor - FoyerDuring the Poster-Session, participants are invited to snacks and drinks.
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26
Design & Construction of an Open Field Cage TPCSpeaker: Lucie Bister (University of Mainz)
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27
The Beam-monitor with Extreme Range (BeER) detector: an innovative detector for the characterization of different particle beams
The Beam-monitor with Extreme Range (BeER) detector is an innovative detector developed and built at the INFN Sezione di Firenze. The detector employs a matrix of 3x3 bare photodiodes repeated for six layers to measure the energy loss through ionization of charged particles traversing the silicon sensors. The silicon sensors are read-out via a Front End Electronics based on the ASIC HiDRA, which is characterized by an extremely large dynamic range: from few fC to 52.6 pC. Thanks to its design, BeER is a powerful detector for the characterization of different types of particle beams. In this contribution, we describe the detector design and its two main applications for characterization of particle beams that we have extensively studied so far through multiple beam tests.
The first application is the characterization of the SPS heavy-nuclei beam. BeER is able to measure the beam composition and to provide event-by-event charge identification from Z=1 up to Z=82 (the charge of the primary Lead that is fragmented to produce the beam) with a very good charge resolution.
The second application is not a charge measurement, but a multiplicity measurement. Specifically, multiple beam tests at the Beam Test Facility of Frascati demonstrate the capability of BeER to measure with a very good linearity the multiplicity of electrons with energies of a few hundred MeV per spill: from the single particle up to about fifteen thousands particles per spill.
In this contribution we will describe and discuss the characterization of the BeER performance for charge measurement and multiplicity measurement.Speaker: Elena Gensini (Universita e INFN, Firenze (IT)) -
28
Design and Current Status of Magix' Trigger-Veto SystemSpeaker: Hannah Keßler (University of Mainz)
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29
Performance studies of multiple prototypes of the Surrounding Background Tagger of the SHiP experiment
SHiP (Search for Hidden Particles) is a general-purpose beam dump experiment in preparation at CERN. Its goal is to search for new feebly interacting particles at the GeV scale in an environment of near zero background. The Surrounding Background Tagger (SBT) is a key part of SHiP's background suppression system. It detects muons entering SHiP's helium-filled decay volume from the sides, as well as muon and neutrino inelastic interactions within the volume.
The SBT consists of about 800 cells filled with liquid scintillator as the active detector material (LAB+PPO). The scintillation photons in each cell are read out by two Wavelength-shifting Optical Modules (WOMs), optically coupled to an array of 40 Silicon Photomultipliers (SiPMs) each.
This work presents results from performance studies of SBT prototypes developed and tested between 2022 and 2025 at the CERN PS and at DESY Hamburg test beam facilities. The prototypes explore different cell materials and production techniques to improve the overall light yield, a crucial factor for efficiency, time and spacial resolution. The results include the timing performance and the detector's efficiently.Speaker: Ida Maria Wostheinrich (Humboldt University of Berlin (DE)) -
30
TelePix2 - Fast Timing and Region of Interest TriggerSpeaker: Lennart Huth (Deutsches Elektronen-Synchrotron (DE))
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31
Test Beam Studies of ITk strip modules
The High Luminosity-Large Hadron Collider (HL-LHC) will reach an approximate pile-up of 200 collisions per bunch crossing, three times more than the current Large Hadron Collider. Beginning operation at the end of the decade, it will accumulate up to 3000{fb}^-1, increasing the chances of observing new processes and allowing measurement of rare processes with higher precision. Moreover, the pile-up increase means more particle production, causing higher radiation damage and detector occupancy conditions. Therefore, the current tracking system in the ATLAS detector will be replaced by the new Inner Tracker (ITk), consisting of pixel and strip sub-systems. The ITk is based on silicon detectors called modules, composed of individual sensors and readout electronics. Due to extreme operating temperatures, thermal stresses cause sensors to crack in silicon strip modules and interposers have been introduced in the production process.. Detailed studies of the impact of these interposers have shown that they do not negatively influence the detectors performance.
In the last years significant improvements have been made to the data taking modes have led to improved results with increased operating windows with an efficiency above 99% and noise occupancy below 1e-3. All these results will be demonstrated in the contribution after introducing the setup and general concept of the ITk with a focus on the implications in test beams. A report on progress in analysis of irradiated modules from CERN and DESY test beams, as well as an outlook on ongoing integration studies with the final detector DAQ system and progress towards test beams with large structures will follow. Finally an outlook on the next planned studies will be given.Speaker: Thomas Schioler (University of Copenhagen (DK)) -
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Characterisation of Monolithic CMOS sensor for X-ray Imiging in space and medical applications
This work presents the development and experimental characterisation of a Monolithic Active Pixel Sensor (MAPS) developed within the ARCADIA project. The sensor is fabricated in a modified 110 nm CMOS process featuring an n-type high-resistivity substrate and a fully depleted active thickness ranging from 50 μm to 500 μm. The design integrates in-pixel electronics isolated by deep p-well implants, enabling low-power operation (O(10 mW/cm²)) and enhanced radiation tolerance.
A key aspect of this study is the implementation of an edge-on sensor alignment geometry, which increases the effective X-ray interaction path length in silicon. Spectral performance is evaluated using a dedicated X-ray spectroscopy setup with Molybdenum (Mo Kα₁, Kα₂) emission lines at 17.48 keV and 17.37 keV. Data analysis based on DBSCAN clustering and spatial hit mapping demonstrates stable detector response and reliable event reconstruction over a tube voltage range of 40–140 kV.
The results indicate consistent depth-of-interaction behaviour and good spectral stability, highlighting the potential of the sensor for applications in medical imaging (e.g. proton CT), space-borne X-ray instrumentation, and future high-energy physics vertex detectors.*
Speaker: Sami Ullah Khan -
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SPS test-beam infrastructure extension for low temperature, fast triggering applications
The recent rise of fast timing applications at high radiation fluences requires testing in low-temperature environments (< -40°C) to mitigate thermal runaway for multi-pixelated matrices bonded to readout ASICs and to regulate carrier mobility. To that end, we present an upgraded infrastructure for the EUDAQ-based AIDA telescope at the SPS North Area H6B beamline. The system integrates a 1.2 kW water-cooled, ethanol-based chiller, a low-mass, 0.035 W/mK thermal conductivity wall, cold box and a two-axis (Y-Z) mechanical stage with a 34.2 kN dynamic carrying load, 5 mm pitch, and 1 m travel range. The cold box, with internal usable dimensions of 37 × 30 × 31 cm, supports a removable DUT assembly designed for 30 nm positioning precision and plane-independent 3-axis movement (2 linear and 1 rotational). In addition, accompanying control hardware and software are under development to enable temperature and flow control, seamlessly integrating as a EUDAQ-level producer. To address the 130 nsec trigger decision latency of the AIDA TLU 2, we introduce a fast trigger decision board. The latter, targeting latencies below 10 nsec, while incorporating a synchronization subsystem with the accelerator clock, represents a critical improvement for timing applications.
Speaker: Alexandre Hennessy (University of Zurich (CH)) -
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A Compact BabyMOSS Cosmics Telescope
During the third long LHC shutdown (2026-2030), the ALICE Inner
Tracking System will undergo an extensive upgrade, where the three in-
nermost layers of the detector will be replaced by ultra-thin (50 μm) wafer-
scale silicon sensors, that will be bent around the beam pipe. The very
first sensor prototypes were developed, called the MOnolithic Stitched
Sensor (MOSS), consisting of 10 repeated sensor units (RSU) stitched to-
gether. A single-RSU sensor, referred to as the babyMOSS, was produced
to ease the sensors characterization studies.
The babyMOSS sensor has been rigorously studied in various test
beams in terms of its detection efficiency, spatial resolution and cluster
size. In addition to the test beams, the babyMOSS sensor will also be char-
acterized using cosmic muons. For this purpose, a compact babyMOSS
cosmics telescope is currently being commissioned at Lund University.
The telescope comprises 4 babyMOSS sensors as tracking planes and one
device under test (DUT), placed in the middle, spaced 3 cm apart. The
trigger signal is handled by the FPGA of the trigger board with manually
set trigger conditions.
To characterize the babyMOSS sensor using cosmics, several software
developments are in progress, that deal with data acquisition and analysis.
For instance, customized EUDAQ2 software processes have been imple-
mented, that allow controlling the underlying detector hardware. Data
management routines have been developed to select only the events con-
taining particle hits. These raw events are then converted to standard
EUDAQ2 format using a dedicated Event Converter. The analysis is per-
formed using Corryvreckan framework with the main challenge being track
reconstruction for non-perpendicular tracks.
This work presents the design of the babyMOSS cosmics telescope,
the implementation of software processes and some of the first results of
the sensor’s detection efficiency, cluster size and fake-hit rate, obtained by
analyzing data collected using the telescope.Speaker: Julija Zaksaite (Lund University (SE)) -
35
A low-latency asynchronous trigger board
In our experimental setup for testing calorimeter prototypes at the SPS, digitisation occurs in several ways. The most relevant to trigger system performance is charge measurement with current-integrating analog-to-digital converters (QDCs) in trigger-driven gates.
The main challenge here is the requirement that the current-integrating gate precede the QDC analog signals by at least 15 ns. Added to this is the trigger formation latency, which, with modular NIM electronics, approaches 50 ns. With FPGAs, we could only achieve marginal improvements, meaning we would have to compensate for 60-70 ns of total latency in signal arrival time.
For these reasons, we decided to design a low-latency asynchronous trigger board from scratch with discrete negative ECL electronics, targeting a total latency close to 15 ns.
Due to NECL limited chip portfolio, we identified the MAX9600 dual comparator and the MC10EL31 D flip-flop (configured as one-shot) as the logic building blocks.
The initial implementation (on a 2-layer PCB homemade due to time constraints) suffers from crosstalk and noise (we had to add decoupling capacitors and shielding in many places) and, to a much lesser extent, from the fact that the pulse duration is defined by an RC feedback loop.
Nonetheless, the board proved crucial (with excellent performance) for the beam tests we conducted in autumn 2025.
Methods for tagging problematic events were identified and implemented in the DAQ system and the total latency was estimated at about 13 ns.
Possible improvements under investigation include moving to a 4-layer PCB, for improved immunity to noise and crosstalk, digital control of the comparator thresholds, and the use of software-controllable delay lines for setting the one-shot pulse duration.Speakers: Emanuele Romano (Pavia University and INFN (IT)), Roberto Ferrari (INFN Pavia (IT)) -
36
Noise Analysis in the MuPix11 sensor for the Mu3e Experiment
The Mu3e Experiment searches for the charged-lepton-flavour-violating decay,
𝜇⁺ → e⁺e⁻e⁺ with an aimed single-event sensitivity on the branching ratio of 10⁻¹⁵, imposing stringent requirements on the noise performance of its ultra-low-mass vertex detector. The MuPix11 sensor, a high-voltage monolithic active pixel sensor (HV-MAPS), has been observed to exhibit spatially fixed noise features, necessitating a detailed characterisation of its noise behaviour.In this contribution, a systematic noise study of MuPix11 is presented, based on cosmic data from the Mu3e vertex detector and quad-module measurements conducted at the Physics Institute in Heidelberg and the Paul Scherrer Institute. Noise characterisation is performed using a frequency-domain analysis based on Fast Fourier Transform (FFT) techniques to identify spectral features and coherent noise sources. A dedicated reconstruction framework is used to extract per-pixel noise rates, temporal correlations, and spatial noise maps.
First results reveal the dominant noise contributions under varying operating conditions and demonstrate the suitability of the developed FFT-based methods for supporting sensor optimisation and the qualification of MuPix11 for integration into the Mu3e detector.
Speaker: Antonios Kontopoulos (Physikalisches Institut Heidelberg)
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Lecture
Lectures to be offered
- The Mainz Energy-Recovering Superconducting Accelerator MESA - an Overview
- Overview of DRDs
- A practical guide to beam telescopesConvener: Finn King (Deutsches Elektronen-Synchrotron (DE))-
37
A practical guide to beam telescopes
Beam telescopes play a central role in the development of technologies for particle detection as well as beam manipulation. They provide reference measurements of particle trajectories that enable performance studies of Devices Under Test in particle beams. Successful operation relies on the coordinated integration of detectors, mechanics, and electronics. In addition, dedicated gateware, firmware, and software for system control, readout, track reconstruction, and data analysis are required. This makes beam telescope development a highly multidisciplinary effort.
The lecture discusses how beam telescopes are realized in practice, covering planning, building and commissioning, highlighting typical constraints, design trade-offs, and lessons learned from existing implementations. It provides both newcomers and experienced users with a general understanding of beam telescope systems and offers insight and inspiration for addressing both common and less conventional challenges and pitfalls.
Speaker: Justus Braach (CERN)
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37
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Coffee break
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CalorimetryConvener: Lennart Huth (Deutsches Elektronen-Synchrotron (DE))
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38
Overview of DRD Calo Test Beam Activities
The DRD Calo collaboration is formed by a large community of calorimeter experts, who are proposing, developing and testing several different techniques aiming at future experiments, following the European Strategy recommendation roadmap. Since the formation of the collaboration a coordinated effort for testbeam data taking is ongoing in several facilities around the world. Progress in the testbeam DRDCalo effort as well as new interesting results will be presented in this talk.
Speaker: Lucia Masetti (Johannes Gutenberg Universitaet Mainz (DE)) -
39
Development and performance studies of a MPGD-Based Hadronic Calorimeter for Future Colliders
Abstract: Lepton colliders, such as FCC-ee and a multi-TeV muon collider, have been proposed as possible options to investigate the Standard Model (SM) after the HL-LHC. In this context, calorimeters at future experimental facilities will require excellent energy resolution to effectively differentiate between hadronic decays of W and Z bosons, good granularity at the $O(1\ \mathrm{cm}^2)$ level, and excellent time resolution of a few nanoseconds, to be compliant with Particle Flow Algorithms that allow achieving optimal jet reconstruction performance.
We propose a hadronic calorimeter (HCAL) consisting of a sampling structure of absorber material and resistive Micro-Pattern Gaseous Detectors (MPGD) as the active layers.
In this contribution the latest developments in the project will be presented, including simulation studies using GEANT4 and recent results from test beam campaigns, focusing on the performance of the MPGD active layers and the hadronic-shower response of a 12 layers MPGD-HCAL prototype, where first 8-layers are of the dimensions of $20 \times 20\ \text{cm}^2$ and last the 4-layers of $50 \times 50\ \text{cm}^2$.
Speaker: Mr Muhammad Ali (Universita e INFN, Bari (IT)) -
40
Test-beam campaign of a highly compact calorimeter prototype
Several configurations of a highly compact electromagnetic sampling calorimeter prototype, developed for future Higgs factories and strong-field QED experiments, were tested at the DESY-II testbeam facility. The prototype comprises flat tungsten absorber plates interspersed with 320-µm thick silicon sensor planes. Each 9×9 cm2 sensor is segmented into 256 readout pads. The sensors are glued to flexible PCB films and connected to readout electronics mounted on top of the sensor planes. An aluminium mechanical structure, dedicatedly designed for the LUXE experiment, ensures highly precise alignment of all modules. This prototype minimizes lateral air gaps between planes, thereby reducing the effective Molière radius and improving the expected detector performance. Electron impact points are measured by the new ALPIDE-based telescope, enabling detailed studies of shower profiles, position and energy resolutions, and also the impact of gaps between active volumes. Preliminary results on the performance will be reported.
Speaker: Bartłomiej Brudnowski -
41
The Light Dark Matter eXperiment Slice Test and HCal Test Beam
The Light Dark Matter eXperiment (LDMX) is a fixed-target search for thermal relic light dark matter. The LDMX hadronic calorimeter (HCal) is primarily designed to act as a highly efficient veto detector for few-GeV neutral hadrons produced in photo-nuclear background reactions, which is necessary for sensitivity to models with invisible missing momentum and missing energy signatures. For models with visible decays within the detector, such as long-lived dark photon or ALP decays, the HCal must also reconstruct shower energies and efficiently discriminate between electromagnetically and hadronically induced showers using shower shape information. A prototype HCal was tested in 2022 at CERN's East Area T9 beamline in a mixed muon, electron, and pion beam between 0.3 - 4 GeV, giving a first estimate of the HCal's energy resolution and neutral hadron veto power. In 2025, a slice of each LDMX sub-detector was installed in SLAC's End-station A and tested with a 4 GeV electron beam from the newly commissioned Linac to End Station A (LESA) beamline. Prototypes of the HCal, ECal, silicon tracker, trigger scintillator arrays, and a proposed active target, were simultaneously tested, and is our first activity in the beam hall where LDMX will be constructed.
Speaker: Erik Wallin (Lund University (SE)) -
42
Overview of ATLAS Tile Calorimeter Test Beam Campaigns
During the Long Shutdown 3 that will take place in years 2026 - 2030, a comprehensive upgrade of the ATLAS Tile Calorimeter system is planned to meet the challenges of a 1 MHz trigger rate, higher ambient radiation levels, and increased pile-up conditions. This upgrade involves a complete replacement of both on- and off-detector electronics, along with the replacement of approximately 10% of the photomultiplier tubes in the most exposed detector cells.
Test beam campaigns were performed using the beam from the Super Proton Synchrotron (SPS) accelerator at CERN from 2015 to 2025. The main goal was to validate the new electronics and record data with beams of muons, electrons and hadrons at various incident energies and impact angles to study the performance of the legacy and new electronics.
This contribution summarises the 10-year period of the ATLAS Tile Calorimeter test beam campaigns, focusing on the beam test setup, the upgrades of the calorimeter electronics, the trigger and particle identification systems. The results obtained analyzing muon, electron and hadron data will also be discussed.
Speaker: Tamar Zakareishvili (Univ. of Valencia and CSIC (ES)) -
43
Highly-granular calorimeter sensor alignment with the beam telescope
Prototype of a highly compact electromagnetic sampling calorimeter dedicated to positron flux measurement at the LUXE experiment, was tested at the DESY-II testbeam facility. The prototype was built of tungsten plates of 1 Xo (3.5 mm) instrumented with thin silicon sensors segmented into 5.5×5.5 mm2 readout pads. Presented in this contribution is the novel alignment method which allows to extract sensor positions inside the calorimeter with high precision, even for ''deep'' sensor layers, based on high statistics of electron data taken with ALPIDE-based telescope. Precise determination of the internal geometry of the calorimeter is crucial for the analysis of the electromagnetic cascade development, for extraction of the effective Molière radius in particular.
Speaker: Bartłomiej Brudnowski
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12:30 PM
Workshop photo
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Lunch
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Hands-on tutorials
Tutorials to be offered:
- Introduction to KiCAD PCB design software
- The Corryvreckan Test-Beam Reconstruction Framework --- Hands-on
- Silicon Detector Monte Carlo Simulations with Allpix Squared
- Constellation Hands-on: Control and DAQ Framework for Test Beams and Beyond-
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Constellation Hands-on: Control and DAQ Framework for Test Beams and Beyond
Constellation is a control and data acquisition framework for small-scale experiments like test beams or lab characterizations. It provides the necessary functionality for such environments like synchronous operation of several devices, unified configuration interface, logging, telemetry, data transmission and error handling. So-called satellites form the basis of Constellation, which are autonomous programs that control an instrument.
This tutorial provides a short introduction into Constellation and its core principles. The operation of multiple satellites, including configuration and monitoring, is covered as well. Finally, participants of the tutorial will implement their own satellite in Python for real hardware provided for the tutorial.
Speakers: Judith Schlaadt, Simon Spannagel (Deutsches Elektronen-Synchrotron (DE)), Stephan Lachnit (Deutsches Elektronen-Synchrotron (DE)) -
45
Tutorial: Silicon Detector Monte Carlo Simulations with Allpix Squared
This interactive workshop will introduce participants to the fundamental functionalities of the Allpix Squared simulation framework, guiding them through key steps in sensor simulation and data analysis. Attendees will learn how to configure simulations, define detector geometries, and extract relevant quantities through histograms. Additionally, the participants will be able to learn how to integrate TCAD simulation results to enhance detector modeling.
The workshop will be hands-on, with step-by-step instructions provided. A Q&A session will allow for discussions on specific topics and troubleshooting.
Preparations:
Participants are encouraged to follow along on their own computers. Please install the latest release version of Allpix Squared on your computer, or ensure you can access a working version online before the tutorial via e.g. CVMFS. A virtual machine can be provided for those unable to install the software.Detailed instructions for installation can be found in the manual or on the website (https://allpix-squared.docs.cern.ch/) and GitLab (https://gitlab.cern.ch/allpix-squared/allpix-squared)
Speakers: Håkan Wennlöf (Nikhef National institute for subatomic physics (NL)), Isis Hobus
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46
TB Coordinators MeetingSpeaker: Ralf Diener (DESY)
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Coffee break
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Hands-on tutorials
Tutorials to be offered:
- Introduction to KiCAD PCB design software
- The Corryvreckan Test-Beam Reconstruction Framework --- Hands-on
- Silicon Detector Monte Carlo Simulations with Allpix Squared
- Constellation Hands-on: Control and DAQ Framework for Test Beams and Beyond-
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The Corryvreckan Test-Beam Reconstruction Framework --- Hands-on
Corryvreckan is a software framework dedicated to the analysis of test-beam data. It employs a modular concept, providing algorithms for typical analysis steps like pixel masking, clustering, tracking, alignment and for the reconstruction of commonly investigated observables like hit detection efficiency, spatial and temporal resolution, or material budget. This approach allows for a flexible configuration and adaption to a broad range of setups and devices, and explicitly includes the EUDAQ2 framework and the AIDA TLU.
This tutorial provides an introduction to the Corryvreckan framework, the use of different analysis modules and their configuration. A key point of Corryvreckan --- the flexible event building mechanism --- will be covered for a typical setup, making use of EUDAQ2 and the AIDA TLU. Finally, the use of Corryvreckan as a tool for online monitoring will be covered.Speakers: Finn King (Deutsches Elektronen-Synchrotron (DE)), Naomi Davis (ATLAS) -
48
Tutorial: Introduction to KiCAD PCB design software
This lecture (20 Min) and hands-on workshop (60 Min) introduce the fundamentals of printed circuit board (PCB) design using KiCad, with a focus on slow-control applications in laboratory environments. KiCad, an open-source electronic design automation (EDA) tool is widely used by physicists and research institutions worldwide.
Participants are guided through the complete workflow from schematic capture and component selection (THT and SMD) to PCB layout, Electrical and Design Rule Checks, and preparation for manufacturing. The theoretical part covers key design constraints such as current, frequency limits, PCB materials, and basic impedance considerations.
In the practical session, participants design a simple flashlight PCB step by step and gain insight into reflow soldering processes. Optional topics include custom symbol and footprint creation and a WiFi-based slow-control example using a Raspberry Pi Pico.
By the end of the workshop, participants are able to independently design and prepare a functional PCB for laboratory applications.
Speakers: Peter-Bernd Otte, Peter-Bernd Paul Otte (Johannes Gutenberg Universitaet Mainz (DE))
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Infrastructure and SoftwareConvener: Adrian Herkert (Deutsches Elektronen-Synchrotron (DE))
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49
A Year of Test Beams with Constellation
The qualification of new detectors in test beam environments presents a challenging setting that requires stable operation of diverse devices, often employing multiple data acquisition (DAQ) systems running on several machines in a local network. Changes to these setups are frequent, such as using different reference detectors depending on the facility. Managing this complexity necessitates a system capable of controlling the data taking, monitoring the experimental setup, facilitating seamless configuration, and easy integration of new devices.
Constellation is a flexible control and data acquisition framework developed with the requirements of laboratory and test beam environments in mind. It has been in development for the last two years and now considered ready for use in real-world measurements.
Over the last year, several test beam campaigns have taken place where Constellation was used. In this contribution a selection of those setups are presented, highlighting Constellation's features and quality-of-life improvements over existing solutions along the way.
Speaker: Stephan Lachnit (Deutsches Elektronen-Synchrotron (DE)) -
50
TDAnalyser - a modular test beam data analysis framework
We present TDAnalyser, a data analysis framework developed for the analysis of timing detectors under R&D. Based on a C++ architecture, it aims at normalising analysis procedures to evaluate various detector performances quantiles through the definition of standard and user-defined analyses building blocks:
From readout-specific (e.g. oscilloscopes waveforms, DRS4/Sampic ADC values, HPTDC/PicoTDC time measurements) unpacking procedures to complex analyses extracting a detector's intrinsic time resolution, or spatial correlations between multiple channels, through time discrimination or amplitude-recovery algorithms, its modular extension toolset gives analysts a common platform for the definition of their workflow.
With its ROOT RNTuple backbone for the management of the run- and event-granular payloads (including user-defined objects), it provides multiple I/O modules implementations for the preservation and standardisation of test beam datasets.
In this talk, we will present a few of the latest TDAnalyser features, and highlight a couple of successful reanalyses of datasets that led to past publications.
Speaker: Laurent Forthomme (AGH University of Krakow (PL)) -
51
Corryvreckan analysis tool for Gaseous Detectors: Track reconstruction with SRS/VMM3a data
R&D on novel gaseous detector (GD) technologies is coordinated within the recently established DRD1 collaboration. As part of these efforts, the collaboration organises joint test-beam (TB) campaigns at a semi-permanent facility on the H4 beamline of CERN’s Super Proton Synchrotron (SPS). For these TBs, a common infrastructure is provided, including beam telescopes equipped with GD and SRS (Scalable Readout System) electronics for data acquisition.
In this contribution, we present a dedicated extension to the Corryvreckan reconstruction framework to support GD-based TBs. A new Event Loader module has been developed to enable VMM-based Micro-Pattern GD (MPGD) data analysis with Corryvreckan. The module provides the required interface between MPGD-specific data formats (specifically SRS/VMM3a) and Corryvreckan’s event-based processing, allowing the use of existing tools for alignment, online and offline tracking, data quality assurance, and monitoring. The module was validated using simulated datasets and subsequently deployed during real-time data-taking, where it provided essential feedback for detector operation and TB optimisation. The results obtained with this Event Loader show good agreement with those from an independent analysis approach.
Furthermore, this work complements parallel efforts within DRD1, integrating various technologies – including MPGDs, wire chambers, and RPCs – as well as other electronics, such as the APV25, highlighting the flexibility of Corryvreckan in effectively processing data from different ASICs.
By introducing a single, modular extension, nearly the full functionality of Corryvreckan is made available to gaseous detector TBs without modifying the core framework. This development demonstrates that Corryvreckan can be efficiently adapted to the requirements of GD-based telescopes, providing a unified and flexible solution for data analysis, online monitoring, and precision tracking in current and future DRD1 TB campaigns.Speaker: Maryna Borysova (Weizmann Institute of Science)
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Coffee break
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Test Beam AnalysisConvener: Tamar Zakareishvili (Univ. of Valencia and CSIC (ES))
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52
Particle Identification based on the Time-over-Threshold with MuPix11 Sensors
The High-Voltage Monolithic Active Pixel Sensors (HV-MAPS) extend the monolithic design concept by embedding the readout electronics in a deep n-well, enabling high voltage operation and fast charge collection via drift. The MuPix11 is an HV-MAPS chip with a pixel size of 80 x 80 $\mu$m that can be thinned to 50 $\mu$m, offering low material budget and precise spatial and time resolution.
The analogue pixel signal is digitised in the periphery, producing leading- and trailing-edge timing information from which the Time-over-Threshold (ToT) is computed. Since charged particles deposit different amounts of energy depending on their type and momentum, the ToT provides a useful proxy for measuring energy deposition and distinguishing different particles.
This work presents first results from testbeam campaigns conducted at the Paul Scherrer Institute with the goal of systematically investigating the dependence of the ToT response on particle type and momenta. The measurements were performed with a setup consisting of four layers of quad modules, each composed of four MuPix11 sensors mounted on a single printed circuit board. Two datasets are used, one containing pions, muons, and electrons with momenta from 100 to 350 MeV/c, and another with surface muons of 28 MeV/c. By reconstructing particle trajectories across the sensor planes, hits are associated with individual particles, enabling a track-based analysis of the ToT response.
Speaker: Effrosyni Zachou (Heidelberg University (DE)) -
53
Test beam Results of the ALICE ITS3 Analogue Pixel Testing Structure measured at ELSA
The ALICE Collaboration is preparing for the next phase of its physics program with a full overhaul of its detector, also called ALICE 3, which will be installed during Long Shutdown 4 of the Large Hadron Collider (LHC).
The ALICE 3 tracking system will rely exclusively on Monolithic Active Pixel Sensors (MAPS) fabricated using TPSCo’s 65 nm CMOS imaging process. To investigate how design parameters influence the performance of the sensor, several sensor prototypes have been developed to study properties such as in-pixel efficiencies, detection efficiency, and spatial resolution. Among these, the Analogue Pixel Test Structure (APTS), designed within the ITS3 project, serves to evaluate the analogue performance of the sensor technology.For the characterization of the APTS, test beam measurements were performed at the Electron Stretcher Facility (ELSA) in Bonn using a babyMOSS telescope, based on Monolithic Stitched Sensor (MOSS) technology and representing the first full-scale prototype of the ITS3 sensor family.
During these measurement campaigns, selected APTS devices were irradiated at Bonn’s Isochronous Cyclotron, enabling studies of radiation damage.
This contribution presents the methodology and results of these test beam measurements. This work is supported by BMFTR.Speaker: Maximilian Thomas Spors (University of Bonn (DE)) -
54
Grazing Angle Test Beam Studies of the Hybrid-to-Monolithic MAPS Prototype
The H2M (Hybrid-to-Monolithic) prototype is a technology demonstrator for fully integrated Monolithic Active Pixel Sensors (MAPS) manufactured in a novel $65\,\mathrm{nm}$ CMOS imaging technology. This technology enables the production of MAPS with an increased density of in-pixel logic. The H2M design ports a hybrid pixel-detector architecture into a monolithic chip with a pixel matrix of $64 \times 16$ square pixels of size $35 \times 35\, \mu \mathrm{m}^2$.
To investigate the internal electric field and charge collection characteristics of H2M, grazing angle studies are performed at the DESY II Test Beam Facility. Here, particles impinge the sensor at very shallow angles, enabling the extraction of charge collection as a function of depth. From this information the active thickness of the sensor, which is on the order of $10\,\mu\mathrm{m}$, can be determined. This contribution will provide an overview of the experimental setup and will show results of the grazing angle measurements including the determined active thickness of the sensor for various samples and operation conditions.
Speaker: Ono Feyens (Deutsches Elektronen-Synchrotron (DE)) -
55
Design and Beam Test Results of the crystal Zero Degree Detector for BESIII
The crystal Zero Degree Detector (cZDD) is a proposed upgrade to the BESIII experiment in China. In order to measure hadronic cross sections using the Initial State Radiation (ISR) method for a more precise determination of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon, ISR photons must be detected. Since these photons are predominantly emitted at small angles with respect to the colliding beams, the cZDD will detect them in an angular range from approximately 1.5 mrad to 10.4 mrad, which is not covered
by the existing detectors at BESIII. In addition, the cZDD will replace the beam luminosity monitors currently in operation.
The design of the first cZDD prototype, the results of its beam test at the
Mainz Microtron (MAMI), and initial studies of its performance as a beam monitor for BESIII are presented at the 14th Beam Telescopes and Test Beams Workshop in Mainz.Speaker: Mr Frederic Stieler -
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Characterization of Muon Response of the ATLAS Tile Calorimeter Test Beam
The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment and is being upgraded for the High-Luminosity Large Hadron Collider (HL-LHC). The new TileCal electronics for the HL-LHC upgrade is validated using the test beam setup with beams of different particles species and energies in the SPS North Experiment Area. Muon test beams deposit a small but measurable energy in the calorimeter and the muon signal can be used to study the calibration of the different layers and cells.
This contribution presents a study of the muon response at different muon energies using the test beam data and Monte-Carlo simulations. The study was performed for the legacy electronic readout and the new upgrade readouts, as performance comparison is an important step in the preparation of the HL-LHC. In addition, the muon tagging capability of the upgrade electronics tested with Receiving Operating Characteristic curves will be discussed for possible implementation in the ATLAS muon trigger.
Speaker: Miranda Michelle Williams (University of Texas at Arlington (US)) -
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Sieve optimization for calibration of the MAGIX spectrometers
The MAGIX experiment, currently under development at the MESA accelerator in Mainz, will enable a broad range of precision measurements using electron scattering on fixed targets. The core components are two high-resolution magnetic spectrometers
that separate scattered particles according to their momentum and detect them at the focal plane.
To extract scattering variables at the target, accurate reconstruction of the particle trajectories from focal-plane measurements is required. This is achieved through spectrometer optics, using a matrix formalism method that relates measured and target variables. Determining the corresponding transport tensor components demands a dedicated calibration run with a sieve collimator placed in front of the spectrometers entrance.
Since the performance of the calibration directly depends on the sieve geometry, designing it is a nontrivial task. We present a simulation-based optimization approach, which evaluates the sieve pattern based on the quality of the reconstruction.Speaker: Mr Alen Gajer (Institute of Nuclear Physics Mainz)
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Lunch
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BL4SConveners: Jan-Hendrik Arling (Deutsches Elektronen-Synchrotron (DE)), Seyma Esen (CERN)
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Introduction to the BL4S Competition
Beamline for Schools (BL4S) is a physics competition for high school students from all around the world organised at CERN, the European Laboratory for Particle Physics, in Geneva, Switzerland, and DESY, the German Electron Synchrotron, in Hamburg, Germany. Teams of high school students can propose an experiment that they want to perform at a beamline, that is, a part of a particle accelerator. The teams that submit the three best proposals win a trip to CERN, DESY or MAMI to perform their experiments at a fully-equipped beamline.
Here, we will introduce the competition as held in 2025 and set the stage for the teams' presentations in the following.
Speakers: Dr Jorge Andres Villa Velez, Seyma Esen (CERN) -
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Secondary particle effects on neutron yield in spallation target
Spallation is a nuclear process in which high-energy particles interacting with a heavy target generate hadronic cascades leading to intense neutron production. In this experiment conducted as part of the BL4S competition at the PS (proton synchrotron) at CERN, we investigate the effect of composite spallation targets combining tungsten and aluminium on neutron yield. The presence of a light metal layer is expected to enhance secondary particle cascades, potentially increasing subsequent nuclear interactions within the heavy target. Experiments were performed using mixed particle beams composed of protons, pions, muons, kaons, and electrons, with relative abundances depending on beam polarity and energy. Measurements were carried out at beam energies of 1 GeV, 5 GeV, and 10 GeV for different target geometries and material thicknesses. Based on the data analysed so far, no significant enhancement of neutron production has been observed for the composite target compared to pure tungsten, although further analysis is ongoing.
Speakers: Cyril Bernard, Maxime Delsemme, Noah Sonck -
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Nuclear Spallation Efficiency: Target Material Optimisation
Nuclear spallation is a key method for neutron production in nuclear physics and applied research. In this project, we investigate how target material and thickness affect neutron yield using 1, 5 and 10 GeV positive and negative beams on cylindrical Tungsten and Copper targets. We compare the dimensions 15 cm diameter × 60 cm height and 15 cm diameter × 30 cm height targets to study geometric optimisation. We simulated all of our experiments using Geant4. Simulations predict the highest neutron production for Tungsten, while Copper shows significantly lower yield. Neutron yield, energy spectra, and angular distributions are analysed. Proton tagging was performed using Cherenkov detectors and time-of-flight techniques. The neutron flux was monitored using two WENDI detectors placed at different positions throughout the experiment to measure the produced and scattered neutrons. We compared the neutron yields created by protons, positive pions and negative pions at 1 GeV. We also found out at which part of the target the spallation occurs the most, and at which momenta the spallation is more efficient.
Speakers: Ela Nur Kırdemir, Emir Özaktaş, Mert Musluoğlu -
61
Calibration of a Three-dimensional Muon Detector Based on Scintillator Binary Optical Encoding at DESY
Cosmic muons constantly reach Earth at a rate of about 1 muon per square centimetre per minute. To provide a safe, simple, and reproducible alternative to high-voltage spark or wire chambers, we developed a three-dimensional scintillator-based detector, the Scintillating Chamber. The detector employs a binary-encoded arrangement of scintillator rods, reducing the number of required sensors to a logarithmic scaling with detector size, with only two sensors per layer. Each layer’s state is represented by a single bit, progressively constraining the possible particle trajectory. The system uses EJ-200 plastic scintillators coupled via wavelength-shifting fibres to custom-designed SiPM circuit boards and an FPGA-based data acquisition system. Beamline tests provided proof of concept and optimisation of optical coupling. Particle tracks are reconstructed and visualised through a custom graphical user interface, demonstrating an efficient and educational approach to muon detection.
Speaker: Aljoscha Ziegleral -
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Transition Radiation in Multi-Layered Dielectric–Metallic Targets for Soft X-Ray Generation and Beam Diagnostics
We designed and carried out an experiment to investigate transition radiation X-rays generated by relativistic electrons traversing through self-built multilayered radiators. The experiment was selected as a winning project in CERN’s 2025 Beamline for Schools competition. Measurements were performed at the ELSA accelerator at the University of Bonn using electron beam energies of 1.8 - 3.2 GeV. The detector setup consisted of a TJ-Monopix silicon pixel detector, combined with a four-plane MIMOSA beam telescope and an additional ATLAS ITk plane. The measured distributions show clear signatures of transition radiation in two of the target materials and demonstrate that low-cost materials can produce radiation yields comparable to those of conventional radiator foils within the explored energy range. The results are in good agreement with theoretical expectations for multilayer transition radiation and highlight the potential of accessible materials for cost-efficient detector studies.
Speaker: Sanjana Rajaram -
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Eysenhardtia polystachya (Kidneywood): Pigment and Fluorite Used as Scintillator Media.
Two scintillator detectors were constructed using the pigment Eysenhardtia polystachya, commonly known as Kidneywood, in an aqueous solution and a fluorite crystal, coupled to a silicon photomultiplier. These media were tested as scintillator media with a Sr90 electron source with an energy range of 0.5 to 2 MeV, obtaining a mean amplitude on the oscilloscope of 10 mV; with a frequency of 2 particles per second for flourite and 1 particle per second for the pigment. Using Beamline facilities at DESY II, the results indicate that the pigment Eysenhadrita polystachya does not scintillate on its own; it requires a dopant. The results show only Cherenkov radiation detection. The fluorite crystal, compared with the scintillator plastic, shows a discrepancy percentage between the two of 72%.
Speaker: Haziel Barcenas Flores
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Coffee break
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Walk and Wine Tour
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SensorsConvener: Finn King (Deutsches Elektronen-Synchrotron (DE))
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ATLAS High-Granularity Timing Detector: results from hybrids and modules in test beam.
The High-Luminosity phase of the LHC (HL-LHC), scheduled to begin operation in 2030, will provide an instantaneous luminosity of up to 7.5x10^34 cm^-2c s^-1. This will result in an average of 200 simultaneous interactions per bunch crossing, significantly increasing the vertex density and creating major challenges for event reconstruction.
To mitigate pile-up in the forward region and enable per-bunch luminosity measurements, the High Granularity Timing Detector (HGTD) will be installed between the tracker and calorimeter. The HGTD will consist of 8032 modules, each comprising two Low Gain Avalanche Detector (LGAD) sensors bump-bonded to dedicated ASICs.
To evaluate the performance of the detector components, several test beam campaigns were carried out at the CERN SPS and DESY facilities. This contribution presents recent results from hybrid and full modules prototypes, including measurement of hit efficiency and time resolution.
Speaker: Khuram Tariq (Chinese Academy of Sciences (CN)) -
65
4D-Tracking with TI-LGADs on Timepix4
In recent years, development of pixel detectors has evolved from only improving the spatial resolution to also improving the temporal resolution.
The ultimate goal is to develop a 4 dimensional tracking (4D tracking) system capable of combining micrometer spatial resolution with a temporal resolution in the order of tens of picoseconds. Sensor types such as Low-Gain-Avalanche-Detectors (LGADs) provide a promising avenue for detectors with excellent time resolution due to their intrinsic gain. To achieve a good spatial resolution, segmentation into small pixels in the order of 50 micron is required. The introduction of trench isolation to the LGAD production process, producing the Trench-Isolated-LGADs (TI-LGADs), enables the technology to achieve the necessary segmentation for use in 4D tracking.
Small pixel TI-LGADs with a miniaturization of pixels down to 55 micron pitch have been assembled on the Timepix4 ASIC and were tested both using lasers and using the Timepix4 telescope as a reference at the CERN SPS beamline.In this contribution we will present recent SPS test beam results of 2nd generation TI-LGAD on Timepix4 using the Timepix4 telescope as a reference. The presentation will evaluate both the temporal and spatial resolution of small pitch TI-LGAD, including their dependence on temperature and incident angle in order to evaluate the technology with regards to its 4D tracking capabilities.
Speaker: Uwe Kramer (Nikhef National institute for subatomic physics (NL)) -
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Novel reconstruction techniques with RSD detectors
While silicon pixel detectors have long provided excellent spatial resolution, the extreme pile-up conditions expected at future high-luminosity colliders require precise timing information to complement spatial measurements. Recent advances in fast silicon sensor technology now enable time resolutions at the level of a few tens of picoseconds, opening the path toward true 4D tracking, in which particle trajectories are reconstructed in space and time.
Among these developments, the Resistive Silicon Detector (RSD) introduces a novel architecture that integrates Low-Gain Avalanche Diode (LGAD) technology with a resistive readout layer. This design preserves the intrinsic fast timing performance of LGAD sensors while achieving spatial resolutions better than 5% of the sensor pitch through charge sharing. At the same time, it reduces the number of required readout channels by a factor of 80-100. These features make RSDs highly promising candidates for next-generation silicon-based 4D tracking systems.
In this work, we present the latest techniques for RSD spatial and temporal reconstruction developed using data acquired during the last DRD3 test beam, conducted with 120 GeV pion beam at SPS, CERN. The analysis comprises amplitude calibration, precise 3D alignment using an innovative approach, and advanced techniques that apply a functional method to extrapolate RSD sensor positions. These novelties enabled precise comparison of the RSD DUTs performance, achieving a spatial resolution <5% of their pitch with all studied samples.
Speaker: Lorena Hahn (KIT - Karlsruhe Institute of Technology (DE))
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Coffee break
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SensorsConvener: Anastasiia Velyka (Deutsches Elektronen-Synchrotron (DE))
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67
AMS-L0 Upgrade: Project Progress, Beam Test Campaign and Performance Test Results
The Alpha Magnetic Spectrometer (AMS-02), operating on the
International Space Station since 2011, measures cosmic rays in the
energy range from ~1 GV to several TV, providing precise determination
of particle charge, momentum, and matter–antimatter separation.To enhance its performance before the expected retirement of the
International Space Station around 2030, the silicon tracking system
will be upgraded by installing a new top layer, AMS-L0. This L0 layer
is composed of two silicon microstrip planes mounted back-to-back with
a relative stereo angle of 45°. Each plane has an active area of 4 m²,
resulting in a total active area of 8 m², and each plane is further
subdivided into four quadrants of 1 m² each. The installation of AMS-L0
is planned for early 2027 and will be carried out by astronauts with
the assistance of the ISS robotic arm. After installation, AMS-L0 is
expected to increase the geometrical acceptance of AMS-02 by up to a
factor of three, while enabling early identification of nuclei before
fragmentation occurs.This report briefly presents an overview of the AMS-L0 design and
status, with emphasis on the full AMS-L0 beam test scheduled for July
2026. In this test, the entire L0 detector will be operated on a
movable structure, with two additional tracking telescopes—each
composed of 6–8 similar detector layers—placed upstream and downstream
as beam monitors. The report also summarizes performance from completed
beam tests with a single L0 module and ground cosmic-ray measurements
with the full AMS-L0, highlighting key indicators such as signal-to-
noise ratio, stability, spatial resolution, and charge resolution.Speaker: Yaozu Jiang (Universita e INFN, Perugia (IT)) -
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Superconductive Detectors for High Energy Physics (SD4HEP) - 160 GeV Pion Testbeam
Quantum sensing techniques offer significant advantages in the low-energy detection regime and show strong potential for sub-picosecond timing applications. In the context of the Future Circular Collider (FCC), expanding the excellent single-photon resolution demonstrated by Superconducting Nanowire Single-Photon Detectors (SNSPDs) to charged particles, would open the door to applications such as precision luminometry, potentially achieving precision levels in the order $10^{-4} $ %. We thereafter plan to assess SNSPD efficiency, spatial/temporal resolution, and energy response with charged particles, laying foundation for future SNSPD-based detectors in collider experiments.
In this presentation, we report on applications of SNSPDs devices based on materials with various compositions and superconducting energy gaps tested with laboratory 90Sr beta sources and 160 GeV pion beams at the CERN SPS. The devices are studied in terms of their detection efficiency, timing, and spatial response within a EUDET-type MIMOSA-26 beam telescope, offering 5 µm tracking resolution. A pair of HPK LGADs providing 30 ps timing reference, combined with a CROC pixelated ROI trigger and a high-bandwidth (>3 GHz) data acquisition system, are employed. Synchronization with the SPS spill structure is achieved through dedicated electronics.
We compare the response of different materials to charged particles, investigating variations in geometrical characteristics such as nanowire width. Detector efficiency and preliminary insights into their potential for tracking and luminometers applications are discussedSpeaker: Alexandre Hennessy (University of Zurich (CH)) -
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Performance evaluation of the AstroPix v3 HV-CMOS Sensor: Results from the DESY II Testbeam
AstroPix is a novel monolithic High-Voltage CMOS (HV-CMOS) active pixel sensor designed for use in medium-range gamma-ray observatories like AMEGO-X. To meet mission requirements, the sensor must demonstrate low power consumption (< 1.5 mW/cm2) and deliver a required dynamic range between 25 and 700 keV with an energy resolution below 10% at 122 keV. The third sensor version features a pixel matrix of 35x35 pixels with a 500 um pitch. A coordinate readout scheme is implemented by connecting pixels via logical OR lines along both rows and columns. This provides independent row and column signals which are matched to pinpoint the event location. To maximize the absorption probability of the photons, full depletion of the sensor is critical. We are evaluating the device performance, including detection efficiency, spatial resolution, and depletion depth, in a dedicated testbeam environment at the DESY II Testbeam Facility. Utilizing a reference tracking telescope, we can precisely analyze the device-under-test performance by direct data comparison under controlled conditions. This talk will present the integration of the AstroPix v3 sensor within the beam telescope at the DESY II Testbeam Facility, along with first experimental results from the recent beamtime.
Speaker: Elizaveta Sitnikova (Deutsches Elektronen-Synchrotron (DE)) -
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Performance Characterisation of LF-MightyPix
For Run 5 of the LHC, LHCb foresees operating at an instantaneous luminosity of up to $1.0 \cdot 10^{34} \, \text{cm}^{-2} \,\text{s}^{-1}$. To cope with this challenging environment, the current detector needs to be upgraded. One crucial part of the upgrade is the new main tracker, the Mighty-Tracker. The innermost region will be instrumented with silicon pixel sensors, planned to be based on the High-Voltage Monolithic Active Pixel Sensor (HV-MAPS) technology. The sensors are required to achieve a hit detection efficiency larger than $ 99 \, \%$ within the $25 \, \text{ns}$ bunch-crossing period of the LHC, ensuring a unique bunch-crossing identification.
LF-MightyPix is the first prototype sensor for the Mighty-Tracker using the LFoundry $150 \, \text{nm}$ HV-CMOS process. Evaluating the performance of LF-MightyPix allows to qualify this process as a possible technology for the Mighty-Tracker pixel sensor. LF-MightyPix is a small-scale prototype, with a size of $3.5\, \text{mm} \times 4\ \text{mm}$ and a pixel pitch of $100 \, \text{µm} \times 100 \, \text{µm} $. In order to characterise the sensor's performance, a test beam campaign at the DESY II test beam facility has been performed. To operate the sensor in a beam telescope, EUDAQ2 has been implemented into the GECCO DAQ system. In this presentation the key features of LF-MightyPix are outlined and its test beam performance is presented. The results demonstrate a hit detection efficiency larger than $ 99 \, \%$ within $25 \, \text{ns}$, fulfilling the Mighty-Tracker requirements.
Speaker: Celina Welschoff (Heidelberg University (DE)) -
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Review of TPSCo 65 nm prototypes for vertexing at a future lepton collider
The OCTOPUS project addresses the development and characterization of monolithic active pixel sensors in the TPSCo 65 nm ISC technology in view of vertexing applications at a future lepton collider. Meeting the corresponding requirements -- outlined in the ECFA detector road map -- will necessitate the simulation, design, and testing of prototypes and a demonstrator chip in this very process.
In this context, we have reviewed literature on existing prototypes, with a focus on the results from test-beam characterization. For the OCTOPUS project, the presented results suggest the feasibility of the endeavor while showcasing challenges and the need for further investigations and provide a foundation for imminent design choices.
Performing such a literature review shows how difficult it is to compare test-beam measurements because of differences in methods and systematics. We will use this experience to make some suggestions on the definition of observables and selection criteria as a guideline for future test-beam analysis and the corresponding publications.
Speaker: Finn King (Deutsches Elektronen-Synchrotron (DE))
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Lunch
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