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01/06/2026, 15:30
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Franz Matejcek (Goethe-Universität Frankfurt, Institut für Kernphysik)01/06/2026, 15:45
The Micro Vertex Detector (MVD) is the first downstream detector of the fixed-target CBM experiment at the future Facility for Antiproton and Ion Research (FAIR). It enables high-precision tracking of low-momentum particles in direct proximity of the target with the first station being placed only 8 cm downstream the interaction point. The four planar stations operate in the target vacuum and...
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Maksym Teklishyn01/06/2026, 16:05
The Silicon Tracking System (STS) of the CBM heavy-ion experiment at the future FAIR facility is designed to operate at beam-target interaction rates of up to 10 MHz, while keeping the total material budget low at 2–8% X₀ over a silicon surface area of around 4 m². These constraints necessitate a highly optimised mechanical design and a tightly coupled integration strategy.
The detector...
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Daniele Pasciuto (Sapienza Universita e INFN, Roma I (IT))01/06/2026, 16:25
The muEDM experiment is a precision effort to search for a permanent electric dipole moment (EDM) of the muon, which would provide direct evidence for CP violation beyond the Standard Model. The project is being carried out at the Paul Scherrer Institute (PSI) and aims to demonstrate, in a compact setup, the feasibility of the frozen-spin technique for a future high-sensitivity...
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Daniele Pasciuto (Sapienza Universita e INFN, Roma I (IT))01/06/2026, 16:45
The muEDM experiment is a precision effort to search for a permanent electric dipole moment (EDM) of the muon, which would provide direct evidence for CP violation beyond the Standard Model. The project is being carried out at the Paul Scherrer Institute (PSI) and aims to demonstrate, in a compact setup, the feasibility of the frozen-spin technique for a future high-sensitivity...
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Anna Driutti (Universita & INFN Pisa (IT))01/06/2026, 17:25
The MUonE experiment at CERN proposes a novel approach to determine the hadronic vacuum polarization contribution to the muon anomalous magnetic moment (muon g-2) through muon-electron elastic scattering. This measurement is important given the recent experimental observation of the muon anomaly at Fermilab, as it provides an independent cross-check to the dispersive and Lattice QCD methods...
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6. Mu3e helium cooling – system performance, humidity control, and optimization for future operationDr Thomas Theodor Rudzki (Physikalisches Institut Heidelberg)01/06/2026, 17:50
The Mu3e experiment operates a silicon pixel detector with an unprecedented material budget of only 0.1% X₀ per tracking layer, enabled by cooling with gaseous helium to avoid introducing additional material from liquids or mechanical structures.
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The helium plant was fully commissioned prior to the start of the 2025 vertex detector operation and successfully provided stable, continuous... -
Ashley Ellen McDougall (The University of Oxford)01/06/2026, 18:10
We present the development and characterisation of ultra-light mechanical support structures for the Mu3e outer pixel tracker. Minimising material budget is critical for the Mu3e experiment, which searches for the charged lepton flavour violating decay $\mu^+ \rightarrow e^+ e^- e^+$. Thermal and electrical performance results will be presented for pixel tracking “ladders” comprising 70 µm...
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Saverio Mameli (INFN Pisa (IT))01/06/2026, 18:30
The Deep Underground Neutrino Experiment (DUNE) will exploit the world’s most intense accelerator-based neutrino beam, produced at Fermilab (USA), to address fundamental questions in neutrino physics, including the neutrino mixing, the neutrino mass ordering, and CP violation in the lepton sector.
The System for on-Axis Neutrino Detection (SAND) is one of the components of the DUNE near...
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Georg Viehhauser (University of Oxford (GB))01/06/2026, 19:00
The support structures for the outer barrel (OB) of the ePIC Silicon Vertex Tracker (SVT) consist of staves approximately 40 mm wide and about 50 cm long in Layer 3 (L3), and 90 cm long in Layer 4 (L4). Heat generated by the MAPS sensors and the electronics required for serial powering is removed by forced air flow through internal channels within the stave structure.
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We will report on... -
Mr Dominic Howgill (University of London (GB)), Julien BONIS02/06/2026, 08:30
The Belle II detector at the SuperKEKB collider at KEK in Japan is the world’s intensity frontier flavour physics experiment at an e+e- collider. This experiment is collecting data at the forefront of accelerator and instrumentation capabilities. It is expected that the detector will need to be upgraded to handle increased data rates, and a silicon detector upgrade is proposed, which would...
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Ms Margherita Rovini (INFN Pisa), Maurizio Massa (Universita & INFN Pisa (IT))02/06/2026, 08:50
In 2032 the SuperKEKB collider will undergo a major upgrade of the interaction region to reach the target luminosity of 6 × 10^35 cm⁻²s⁻¹. A new vertex detector (VTX) for the Belle II experiment will be required to match the new geometry of the machine components and will be based on Monolithic Active Pixel Sensors (MAPS) to provide improved robustness against the higher expected machine...
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Kazu Akiba (Nikhef National institute for subatomic physics (NL))02/06/2026, 09:10
The LHCb Vertex Locator (VELO) is the silicon tracking detector located closest to the interaction region of the LHCb experiment at CERN’s Large Hadron Collider. A further upgrade is foreseen around 2034 to be able to operate at extremely high collision rates, which require new mechanical solutions to minimize material, improve thermal management, and ensure stable detector positioning close...
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Yutaro Takahashi (Nikhef National institute for subatomic physics (NL))02/06/2026, 09:30
The upgrade of the LHCb Vertex Locator (VELO), planned to be installed in 2033, presents a wide range of mechanical engineering challenges driven by the need for minimal material budget, high radiation tolerance, and mechanical stability under stringent operating conditions.
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Additive manufacturing is being explored as a promising technology for developing cooling substrates due to its design... -
Mr Xuhao Yuan (Institute of High Energy Physics, Beijing, China)02/06/2026, 09:50
The Alpha Magnetic Spectrometer-02 (AMS-02) experiment is currently the only magnetic spectrometer operating in space. It holds irreplaceable significance for addressing major scientific questions such as the existence of antimatter and the nature of dark matter. Based on its highly productive physics results and potential, the AMS is expected to operate until 2030 and undergo a detector...
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Todd Claybaugh (Lawrence Berkeley National Lab. (US))02/06/2026, 10:35
Abstract— The ATLAS ITk Global Mechanics, which houses the silicon detector and provides a platform for detector integration is 2.2 meters in diameter and 6 meters long. The Strip Barrels are four 2.8 meter long support structures for the Strip Detector barrel staves. These cylinders are all eccentrically stiffened structures built from ultra-high modulus carbon fiber with cyanate ester...
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Diego Alvarez Feito (CERN)02/06/2026, 11:00
As part of the ATLAS Phase II Upgrade, a new all-silicon tracker will replace the current Inner Detector to meet the demands of the High Luminosity Large Hadron Collider (HL-LHC). The future Inner Tracker (ITk) will include a five-layer pixel detector with extended rapidity coverage. In the central section of the three outer layers, the so-called Pixel Outer Barrel (OB) will adopt a layout...
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Derek Jan Langedijk (CERN)02/06/2026, 11:30
Abstract
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CMS Phase-II tracker and calorimeter subassemblies are currently in production, including their complex, high-pressure CO$_2$ cooling circuits. It is mandatory to ensure that these circuits are leak-tight and safe for operation. Adhering to CERN HSE’s regulations, any pipe assembly of the CO$_2$ cooling system must undergo specific tests and certifications. Furthermore, the... -
Thomas Demaziere (CERN)02/06/2026, 11:50
Over the past 5 years, new joining procedures have been developed by CERN MME group in the framework of detector upgrades for ATLAS and CMS, to be installed during the LHC third Long Shutdown (LS3). These improved detectors rely on high-pressure CO2 cooling circuits reaching their innermost parts. This means that metallic piping is required to withstand pressures of up to 160 bar and...
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Roberto Prieto Garcia (CERN)02/06/2026, 12:10
There is great interest in the High Energy Physics (HEP) community to replace the plastic and metallic pipes currently used in local supports/cold plates. The Vaporization of Sacrificial Components (VaSC) [1-2] enables the possibility to embed a network of channels directly into a composite laminate. After a poly(lactid acid) (PLA) preform with the desired network design is introduced within...
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Loic Davoine (CERN)02/06/2026, 15:00
The ATLAS and CMS Phase 2 upgrade presents multiple challenges, one of which is the need to test the 2PACL based CO2 detector cooling system’s performance of multiple units in a short time frame with a limited team.
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To address this requirement, various solutions were explored in the development of 2PACL control systems, ultimately leading to the implementation of a feature called Autoscan.... -
Andrei Starodumov (Rudjer Boskovic Institute (HR))02/06/2026, 15:00
The cooling capacity of the CMS Phase-2 pixel barrel mechanics must be significantly higher than that of the first two generations of CMS pixel detectors due to the increased granularity of the pixel readout chip and the corresponding higher power dissipation, as well as much higher expected total irradiation dose. All barrel ladders undergo thorough quality control tests with respect to...
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Arianna Eugeni (Universita e INFN, Perugia (IT)), Konrad Wladyslaw Szczyrbak (Tadeusz Kosciuszko Cracow University of Technology (PL))02/06/2026, 15:05
The focus of this work is the current CMS capillary production state in view of the upcoming upgrade. Capillaries play a key role in a cooling loop by ensuring proper flow distribution among parallel branches. For this purpose, it is important that they are sized such that a given flow rate through each capillary produces the desired pressure drop.
Due to their small dimensions large...
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Mr Sören Ahrens (Deutsches Elektronen-Synchrotron (DE))02/06/2026, 15:05
The upgrade of the ATLAS Inner Tracker for the High-Luminosity LHC faced a critical challenge: thermal cycling from +20°C to -35°C induced cracks in silicon sensor modules due to coefficient of thermal expansion (CTE) mismatches between sensor materials and hybrid components. Finite element analyses revealed that the combination of stiff (TrueBlue) and soft (SE4445) adhesives exacerbated...
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Mr Lorenzo Bistoni (Universita e INFN, Perugia (IT)), Pier Filippo Cianchetta (CERN)02/06/2026, 15:10
The focus of this work consists of thermal quality control of the TB2S ladder structures for the future CMS tracker, currently in construction for use in the High-Luminosity Large Hadron Collider (HL-LHC). Efficient and reliable cooling is crucial to ensure proper functioning of the tracker in the HL-LHC conditions, throughout the detector lifetime.
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Production and QC of the TB2S ladders is... -
Gauri Napoletano (EPFL - Ecole Polytechnique Federale Lausanne (CH))02/06/2026, 15:15
Authors: Mighty Tracker Collaboration
Corresponding authors: joanna.liberadzka-porret@epfl.ch, gauri.napoletano@epfl.ch
Abstract:
In view of LHCb Upgrade II, taking place during Long Shutdown 4, the detector is going to be modified to operate at a several times higher instantaneous luminosity compared to Upgrade I. The Mighty-Tracker, which replaces the present Scintillating Fibre...
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Leonardo Lucchesi (INFN Pisa)02/06/2026, 15:15
Seismic attenuation is a crucial aspect for the mirrors used in Gravitational Wave (GW) interferometric experiments, as the RMS ground motion is many orders of magnitude higher than the signal to be detected. For this reason, technologies capable of efficiently attenuating vibrations in high mass systems have been extensively developed in this field.
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In this talk, we introduce cantilever... -
Bartosz Grygiel (CERN)02/06/2026, 15:25
During the CMS Phase-2 upgrade, the cooling system of the CMS Tracker will be enhanced to operate its subsystems at temperatures down to -35degC. The cooling medium - liquid CO2 - will be distributed via Detector Transfer Lines (DTLs), passing through PP1s (Patch Panel 1) and then through the Tracker Service Channels (TSCs) before reaching the detectors inside the Tracker.
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As the space inside... -
Dr Franco Frasconi (INFN Pisa)02/06/2026, 15:25
Seismic vibration and local disturbances of any origin represent a nodal problem of ground-based detectors for Gravitational Waves observations and studies. The INFN Pisa group has been involved for more than 25 years in this research field, and it has collected fundamental experience on the development of the Superattenuator (SA), the best mechanical system in the world conceived for...
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Jan-Hendrik Arling (Deutsches Elektronen-Synchrotron (DE))02/06/2026, 15:30
The Phase-2 upgrades for the ATLAS and CMS detectors are the next big upgrade projects imminent. To cope with the challenging conditions for High Luminosity LHC (HL-LHC), the current trackers for both experiments will be replaced by new sub-detectors: the ATLAS Inner Tracker (ITk) and the CMS Tracker. The all-silicon detectors are segmented in the inner regions by the ITk Pixel and the CMS...
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Marc KRAUTH, Philippe Lenoir (CERN)02/06/2026, 16:00
The Tracker Barrel with 2S Modules (TB2S) detector of the HL-LHC CMS Tracker will consist of 4416 silicon strip modules, supported by 368 “Ladder” structures. A carbon composite “Wheel” of 2.4 m diameter and 2.4 m length supports the Ladders as well as smaller sub-detectors of the Tracker. This presentation summarizes the main design features of the TB2S Wheel and explains the various...
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Daniele Benvenuti (Universita & INFN Pisa (IT))02/06/2026, 16:30
During the LHC Phase 2 upgrade, the CMS Tracker will be upgraded to meet the performance demands of High-Luminosity LHC (HL-LHC). This presentation focuses on the realisation and technical decisions of the Tracker Barrel Pixel (TBPX), which has recently reached production phase. To start, it will be presented the current status of the prototypes and first final layers produced, followed by an...
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Semra Turkcapar (Universite Catholique de Louvain (UCL) (BE))02/06/2026, 17:00
For the High Luminosity LHC (HL-LHC), the CMS is going to operate at up to 200 interactions per 25 $ns$ beam crossing and reaching up to 4000 $fb^{−1}$ of integrated luminosity. The CMS Tracker Phase-2 upgrade for the HL-LHC requires designing new Inner and Outer Tracker (OT) systems to cope with the increased luminosity, to ensure excellent tracking performance in the presence of a high level...
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Sushrut Rajendra Karmarkar (Purdue University (US))02/06/2026, 17:50
The Phase II upgrade of the Compact Muon Solenoid (CMS) detector includes major advancements in composite structures and thermal interface design. Following successful prototyping and validation, production of the Inner Tracker Support Tube (ITST) has begun. This presentation highlights key lessons learned and milestones achieved during the production of the ITST composite structures,...
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Pierre Rose (CERN)02/06/2026, 18:10
The Barrel Timing Layer and Tracker Support Tube (BTST) is a 2.4-meter diameter, 5.3-meter long composite sandwich structure designed to provide primary mechanical support for the Barrel Timing Layer, Outer Tracker, and Inner Tracker detectors of the CMS detector for the HL-LHC. This presentation provides updates on repair campaign at CERN, simulation learnings and repair validation testing...
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Mihailo Lukovic (CERN)02/06/2026, 18:30
As part of the CMS Phase-2 Upgrade project, a novel detector, the Endcap timing Layer (ETL), will be installed during LS3 with the goal of precisely measuring the production time of minimum ionizing particles (MIPs) during HL-LHC era which comes with increased number of collisions. To ensure optimal operating conditions, a two-phase CO2 cooling system is going to be used to extract the heat...
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Yann Herpin (University of Zurich (CH))02/06/2026, 19:00
During Long Shutdown 3, the Large Hadron Collider (LHC) at CERN will undergo an upgrade program, marking the beginning of the High-Luminosity era. The High-Luminosity Large Hadron Collider (HL-LHC) is expected to collide protons at a centre-of-mass energy of 14 TeV and to reach the unprecedented peak instantaneous luminosity of 7 x 10^34 cm^-2 s^-1 with the average number of pileup events...
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Youri Penders03/06/2026, 08:30
For the Phase-2 upgrade of the ATLAS and CMS experiments, new generation 2PACL cooling systems will be installed for the thermal regulation of the inner tracking and timing detectors. A commissioning campaign is currently ongoing to validate operational readiness and characterize system performance.
The ATLAS system has been the focus of initial system verification and final development...
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Viren Bhanot (CERN)03/06/2026, 08:50
The 'Surface Storage' module is one of the biggest (and most visible) changes to the Two-Phase Accumulator Controlled Loop principle, developed specially to deal with the requirements from CMS and ATLAS for the Hi-Lumi Phase-2 upgrade.
This 12 m3 surface storage vessel will store all the extra CO2 that cannot be stored in the cavern due to space constraints. Flow to/from the underground is...
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Jerome Daguin (CERN), Lukasz Zwalinski (CERN)03/06/2026, 09:10
Within the framework of CERN’s High Luminosity LHC program, the ATLAS and CMS experiments are progressing in the installation and hardware commissioning of their environmentally sustainable, low-temperature detector cooling systems. These two-phase accumulator-controlled loop (2PACL) systems are unprecedented in scale and complexity—both mechanically and in terms of control systems—than any...
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Efstathios Panourgias (National Technical Univ. of Athens (GR))03/06/2026, 09:40
Detector Transfer Lines (DTLs) are a key element of the CMS Tracker two-phase CO₂ cooling system. They are responsible for distributing liquid CO₂ from the instrumented manifolds at the detector periphery into the detector volume. Their coaxial design (either one or four inner process pipes inside an outer process pipe) allows heat exchange between the liquid supply and the two-phase return,...
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Mr Lorenzo Bistoni (Universita e INFN, Perugia (IT)), Pier Filippo Cianchetta (CERN)03/06/2026, 10:35
This study presents experimental tests on a TBPX cooling manifold conducted at CERN.
The objective is to validate the design methodology for all CMS Tracker capillaries, which is based on the modelling and simulation of different cooling loops (grouped by their manifold) using the Multiline tool.
The tested manifold, which groups seven lines, is the most complex and unbalanced one in the...
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Dr Joe Dawe (University of Bath (GB))03/06/2026, 11:00
Two phase CO₂ cooling is increasingly adopted in low temperature and high heat flux applications across detector and tracking system infrastructures, where its favourable thermophysical properties offer significant potential for compact, low mass thermal management solutions. However, the onset of dry-out remains a critical design concern: while partial boiling enhances heat transfer,...
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Giacomo Antonini (Università degli Studi di Perugia and CERN), Gian Marco Cioffi (Universita e INFN, Perugia (IT) and CERN)03/06/2026, 11:20
Two-phase evaporative CO$_2$ cooling is a leading solution for the thermal management of silicon detectors, enabling high heat removal with limited material budget and nearly isothermal operation in compact geometries. Nevertheless, reliable prediction of flow boiling heat transfer coefficients (HTCs) and the interpretation of the observed trends remain challenging in micro-scale channels,...
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Burkhard Schmidt (CERN)03/06/2026, 15:30
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Fabrizio Palla (Universita & INFN Pisa (IT))03/06/2026, 15:40
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Dr Andrea Moggi (Universita & INFN Pisa (IT)), Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))03/06/2026, 15:50
The FCC-ee interaction region incorporates the crab-waist collision scheme to achieve unprecedented luminosity. This approach combines nano-beam focusing at the interaction point with a large horizontal crossing angle, which in turn requires a compact and sophisticated machine–detector interface layout.
To assess the feasibility of this advanced design, INFN and CERN have jointly launched...
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Francesco Fransesini (INFN e Laboratori Nazionali di Frascati (IT))03/06/2026, 16:10
The interaction region of the Future Circular Collider (FCC-ee) requires extremely thin vacuum chambers capable of withstanding thermal loads while minimising the material budget, thus requiring active cooling.
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The chambers have been designed considering the baseline material AlBeMet162, selected to satisfy stringent requirements on stiffness‑to‑mass ratio while minimising material budget... -
Xiaoyan Ma (Chinese Academy of Sciences (CN))03/06/2026, 16:30
As one of the core components of CEPCr, the structural design and thermal management of the beam pipe directly impact beam quality and experimental safety. This study addresses the process validation requirements during the development of the beam pipe by proposing an experimental scheme that uses an aluminum pipe as a substitute for the conventional beryllium pipe. The beam pipe adopts a...
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Bartlomiej Adam Markiel (CERN)03/06/2026, 16:50
Next-generation vertex detectors for experiments such as ALICE ITS3, FCC-ee, and EIC demand a novel mechanical approach to achieve unprecedented tracking precision. This requires a radical reduction in material budget and positioning the first detection layer closer to the interaction point. Within the DRD8 collaboration (WP1), we have developed an ultra-light, wafer-scale curved silicon pixel...
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Gherardo Ammirabile (Universita & INFN Pisa (IT))03/06/2026, 17:10
The inner vertex detector of the IDEA detector concept is based on MAPS technology, and is expected to dissipate less than about 50 mW/cm2. With such low power density air-cooling solutions can be developed. Two main mechanical arrangements for the silicon sensors are envisaged at the moment: a ‘traditional’ flat version, in which MAPS are put on top of a carbon fibre stave, and a curved...
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Jeremy Andrea (Centre National de la Recherche Scientifique (FR))03/06/2026, 17:50
FCC-SEED is an innovative vertex detector concept designed for next-generation electron-positron colliders, particularly the Future Circular Collider (FCC-ee). The design leverages ultra-thin MAPS sensors, precisely bent to small radii to position the innermost layer in close proximity to the interaction point while conforming to the beam pipe. This approach minimizes material budget and...
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Ksenia Solovieva (University of Freiburg (DE))03/06/2026, 18:10
In preparation for the High-Luminosity LHC planned for Run 5, the LHCb detector will undergo its second major upgrade (Upgrade 2). The five-fold increase in instantaneous luminosity will, in particular, pose challenges for the tracking system due to the increased occupancy and radiation conditions. The Mighty-Tracker upgrade aims to therefore replace the current Scintillating Fibre (SciFi)...
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Todor Georgiev Todorov (University of Freiburg (DE))03/06/2026, 18:30
The ability to spatially align tracking detectors is imperative for fully exploiting their technological capabilities. A precise method to achieve this, proven by its use in many high energy physics experiments, is the use of tracks from particle decays and from cosmic rays traversing the detector [1-3]. However, the precision achievable with this method is dictated by the available data...
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Mr Bilal Ganie (University of Manchester)03/06/2026, 18:50
The LHCb experiment at the Large Hadron Collider will undergo a major
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high-luminosity upgrade during Long Shutdown 4 as part of Upgrade II, tar-
geting instantaneous luminosities of up to 1.5 × 1034 cm−2 s−1, corresponding to
an order-of-magnitude increase over previous operation. This will increase the
total integrated luminosity from approximately 50 fb−1 to about 300 fb−1,... -
Alessandro Miccoli (INFN Lecce e Universita del Salento (IT)), Salvatore Maggiore (INFN Lecce e Universita del Salento (IT))03/06/2026, 19:10
In the scenario of a future construction of an ultra-light drift chamber for the Future Circular Collider (FCC-ee), 4 meters long with an internal diameter of 80 cm and an external diameter of 400 cm, with a drift cell smaller than 1.5 cm, arranged in a full stereo configuration ( 50-250 mrad ) and instrumented with the Counting/Timing cluster technique, we propose the construction of a...
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Cristiano Turrioni (INFN, Sezione di Perugia (IT)), Nicola Pacifico (CERN), Sushrut Rajendra Karmarkar (Purdue University (US))04/06/2026, 08:30
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Giorgio Vallone (Lawrence Berkeley National Lab. (US))04/06/2026, 08:40
Future collider particle detectors are being conceptualized worldwide. Most of these concepts foresee tracking systems significantly targeting per-layer material budgets at the 0.25–0.5% X₀ level, and simultaneously sustaining higher data rates, increased radiation doses, and stringent requirements on mechanical stability and cooling. In this regime, structural supports, services, and sensing...
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Giada Bonini (Universita e INFN, Perugia (IT))04/06/2026, 09:00
The FCC-ee detector concepts feature tracking systems with a much larger volume than those of the LHC experiments, with dimensions of about 4 m in diameter and 4 m in length.
To meet the demanding physics performance requirements of FCC-ee, a silicon tracker must have an extremely low material budget, far beyond what has been achieved by large silicon trackers built to date.This...
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Pier Filippo Cianchetta (Universita e INFN, Perugia (IT))04/06/2026, 09:20
At the beginning of 2025, a collaboration at CERN started the development of an upgraded mechanical design for the CMS Inner Tracker TBPX L1 in preparation for its future replacement.
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Building on concepts originally developed for the ALICE Inner Tracker, a new ladder design was developed to significantly reduce the material budget, achieving a reduction of about a factor of three at the... -
Giorgio Chiarelli (INFN Sezione di Pisa,)04/06/2026, 09:40
dditive manufacturing (i.e.”3D printing”) is increasingly being used in a number of areas from aerospace to medicine. Recent advancements in technology are widening the applications in which the 3D printing includes carbon fibers, reinforcing the mechanical properties of the matrix. Continuous Fiber Reinforced Composites (CFRC) exhibits mechanical performances better than when short CF are...
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Dr Xiaohui Qian (IHEP.CAS)04/06/2026, 10:00
The content includes:
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1. Design and simulation of the carbon fiber triangular truss;
2. Development of the triangular truss: introduction to mold design and manufacturing process;
3. Static load testing of the carbon fiber triangular truss. -
Nicola Pacifico (CERN)04/06/2026, 10:40
High Energy Physics experiments make use of advanced materials that are often used within harsh environments, having to withstand radiation levels in the order of several MGy. Several data collections and databases have been compiled in the past, with the intent to provide the community with an entry point to material test data. We will report here on the efforts within the project 2 of Work...
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Finn Barber (University of Oxford)04/06/2026, 11:00
Active vibration control has potential to reduce error contributed by detector vibrations without adding significant mass to support structures.
Prototype outer-barrel staves for ePIC were used as a test-bed for an active vibration control system based on the well-known Filtered-X LMS algorithm, implemented on an FPGA. Erroneous stave oscillations, caused by the air cooling system, were...
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Todd Slater (University of Oxford (GB))04/06/2026, 11:20
Carbon fibre is a popular choice for high performance, demanding applications. It has exceptional and customisable stiffness to weight ratios, strength to weight ratios, thermal stability, and design flexibility. However, future detector upgrades will expose these materials to increasingly high levels of radiation, therefore requiring a better understanding of radiation induced changes in...
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Christine Angela McLean (The State University of New York SUNY (US))04/06/2026, 11:40
This talk will cover recent efforts to measure the electrical resistivity of the carbon fiber composite support structures of the CMS Phase-2 Tracker Forward Pixels (TFPX). The efforts comprise a custom system built at Florida Tech as well as the use of a Quantum Design Physical Property Measurement System at the University at Buffalo. In the near term, the results will help to inform the TFPX...
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Sushrut Rajendra Karmarkar (Purdue University (US))04/06/2026, 12:00
Thermal management of particle sensors and electronics on carbon composite support structures is a critical challenge in particle detectors. This work presents a composite laminate design incorporating graphene/graphite sheets and carbon nanotube yarn to enhance thermal transport while maintaining structural performance. Integration strategies, including surface treatment and co-curing...
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Bart Verlaat (CERN), Oscar Augusto De Aguiar Francisco (The University of Manchester (GB))04/06/2026, 15:30
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Jan-Hendrik Arling (Deutsches Elektronen-Synchrotron (DE))04/06/2026, 15:40
Cooling via micro-channels (MCC) directly embedded in silicon as the sensitive detector material has many advantages and is as such interesting for future detector applications - including photon science detectors or large-scale high-energy physics experiments.
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With the start of DRD8, the established collaboration between CNM and DESY has gained new drive. In the first step, the... -
Javier Fernandez-Tejero (Institut de Microelectrònica de Barcelona (IMB-CNM, CSIC) (ES))04/06/2026, 15:55
New generation of vertex detectors must have excellent thermo-mechanical stability,
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and all-silicon ladders are considered as promising solutions for future detectors, such as
the forthcoming upgrade of the Belle II vertex detector in Japan. However, power
consumption asymmetries between the active area (sensor) and periphery (readout
electronics) can induce large temperature gradients... -
Simone Coelli (Università degli Studi e INFN Milano (IT))04/06/2026, 16:10
The cooling of some silicon vertex detector, like the LHCb VELO, is based on the technology of micro-channels, directly produced in the silicon underneath the read-out modules, that are the main heat sources. With CO2 boiling coolant the sensor can be operated at temperatures, i.e. -40°C, that take the detector safe from the thermal runaway point of view.
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The silicon wafer becomes a real... -
Anze Sitar04/06/2026, 16:25
The VErtex LOcator Upgrade II (VELO U2) detector, together with several other experiments at CERN, aims to advance our understanding of high-energy physics by employing advanced custom-made sensors integrated with an optimized electronic readout system (ASICs). These components require low operating temperatures and high cooling capacity in order to maintain high measurement precision and...
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Bianca Raciti (Centre National de la Recherche Scientifique (FR))04/06/2026, 16:40
Within the DRD8 framework, a French IN2P3 R&D program involving several institutes (LPSC, LEGI, CPPM and LPNHE) develops and studies advanced microchannel cooling technologies for silicon detectors.
The program includes the design and fabrication of micro-channel heat exchangers in Si-Si, Si-pyrex and other materials such as ceramics. In addition, alternative carbon micro-tube heat...
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Alessandro Mariotti (Università & INFN Pisa (IT))04/06/2026, 16:55
Future high-energy physics experiments require silicon tracking detectors with unprecedented spatial and timing precision while maintaining an extremely low material budget. Concepts for next-generation colliders such as the Future Circular Collider impose stringent constraints on the thermal management of vertex detectors. Advanced pixel technologies, including Monolithic Active Pixel Sensors...
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Benjamin Edward Pulver (Purdue University)04/06/2026, 17:30
Jet impingement is an efficient cooling method that sprays coolant directly onto the heat source. This removes the heat transfer impact of the support structure materials – including TIM – by allowing heat to pass unimpeded into the coolant. In data center and turbine blade cooling applications, jet impingement has been demonstrated to remove heat fluxes more than 300W/cm2. There is lack of...
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Prof. Carl Sangan (University of Bath (GB))04/06/2026, 17:45
As new members of DRD8 and the CMS collaboration, the University of Bath offers a broad, collaboration ready platform that spans experiment, design and computation, enabling rapid support across detector mechanics, cooling, materials, electronics and operations. At the core is IAAPS, a purpose-built research environment with configurable thermal and fluid test cells, adjacent control rooms,...
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Alexander Lunt (University of Bath (GB))04/06/2026, 18:00
This presentation will provide an introduction to the Additive Manufacture for Cooling Manifold Structures (AM4CMS) programme, outlining the objectives and early‑stage activities which will be completed by the team for the next two years. This initiation phase will establish the experimental and modelling foundations needed to enable the next generation of additively manufactured CO₂ cooling...
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Ms Camila Pedano-Medina (CERN)04/06/2026, 18:15
Supercritical carbon dioxide (sCO2) is characterised by low viscosity and a peak in specific heat capacity near the pseudo-critical point, making it a promising fluid for electronics cooling in the temperature range 31–50°C. However, systematic heat transfer data at the millimetre scale remain scarce, limiting the applicability of existing predictive correlations. The CO2-SASS experimental...
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Bart Verlaat (CERN)04/06/2026, 18:35
A novel cycle has been developed using an ejector driven by a compressor. This cycle gives a low quality 2-phase flow similar as the traditional 2PACL system provides. The advantage of this ejector system is that it can go lower in temperature than the liquid pumped 2PACL since there is no limitation with respect to the needed subcooling anymore. Where a 2PACL with CO2 is limited to -45°C, an...
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Bart Verlaat (CERN)04/06/2026, 18:55
Krypton has been identified as a candidate cooling fluid for the temperature range below the usable range of CO2. Krypton has a critical point of -63.7°C @ 55.3 bar and a normal boiling point of -153°C. In between this range Krypton can be used as 2-phase evaporative cooling, and above the critical point as a super critical single phase cooling. The CERN EP-DT-DC cooling group together with...
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Corrado Gargiulo (CERN), Diego Alvarez Feito (CERN)05/06/2026, 08:30
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Haoyu Shi (Chinese Academy of Sciences (CN))05/06/2026, 08:40
Real-time, high-precision radiation dose monitoring and environmental parameter measurement of key components within the experimental halls of high-energy particle colliders are essential for ensuring equipment safety and experimental data integrity. Conventional manual measurement methods not only face significant personnel safety risks and operational inefficiencies in high-radiation areas...
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Paolo Francesco Scaramuzzino05/06/2026, 09:00
Remote inspection of underground infrastructure at CERN increasingly relies on mobile robotic systems to reduce human exposure to hazardous environments and improve operational efficiency. These environments, including detector caverns and accelerator tunnels, present significant challenges for wireless communication due to their complex geometry, confined spaces, and the presence of large...
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Carolin Benjamins (RWTH Aachen)05/06/2026, 09:20
The development of next-generation tracking detectors comprises challenges in mechanical integration, high-density service routing, and long-term maintenance. As these systems become more complex and are deployed in constrained, high-radiation environments, traditional manual intervention reaches its limit.
di.monta introduces a novel approach to detector lifecycle management through...
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Daniele Pasciuto (Sapienza Universita e INFN, Roma I (IT))
The muEDM experiment is a precision effort to search for a permanent electric dipole moment (EDM) of the muon, which would provide direct evidence for CP violation beyond the Standard Model. The project is being carried out at the Paul Scherrer Institute (PSI) and aims to demonstrate, in a compact setup, the feasibility of the frozen-spin technique for a future high-sensitivity...
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