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Prof. Gian Franco Dalla Betta (Universita degli Studi di Trento and INFN (IT)), Gian-Franco Dalla Betta (INFN and University of Trento), Gian-Franco Dalla Betta (INFN and University of Trento), Maurizio Boscardin (Fondazione Bruno Kessler (IT)), Maurizio Boscardin (FBK Trento)17/02/2026, 09:00
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Patrizia Cenci (INFN Perugia (IT)), alessandro paciaroni17/02/2026, 09:10
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Matteo Duranti (Universita e INFN, Perugia (IT))17/02/2026, 09:20
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Luigi Vigani (Heidelberg University (DE))17/02/2026, 09:35
Mu3e is an experiment designed to search for the charged lepton flavour violating decay µ⁺ → e⁺e⁻e⁺ and it will operate in two phases. Phase I, currently under construction, will take place at the πE5 beamline at PSI, using its intense DC surface muon beam of 10⁸ µ⁺/s to reach a sensitivity of 2 × 10⁻¹⁵. Phase II will be built in the future High-Intensity Muon Beam (HIMB), to push the...
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Joaquim Pinol Bel (IFAE)17/02/2026, 09:55
MiniCactus V2 is a demonstrator intended to study the timing performance that can be obtained from non amplified large electrode CMOS sensors developed with the 150 nm LFoundry HV CMOS LF15A technology.
MiniCactus V2 is the most recent iteration of a line of timing oriented sensors, with improved performance over its predecessors. It features pixels of different sizes, from 1mm x 1mm to 0.5...
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Archie William Hanlon (University of Liverpool)17/02/2026, 10:15
With the development of high-luminosity colliders, need for 4D particle tracking has arisen. For this to be possible, tracking detectors have a requirement not only for high granularity, but also to have timing resolution of sub 60 ps .
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To achieve this, the MiniCactusV2 chip has been designed to study the timing capabilities of non-amplified High Voltage-CMOS sensors, developed in the... -
Alessandro Tricoli (Brookhaven National Laboratory (US))17/02/2026, 11:05
The silicon sensors known as Low Gain Avalanche Diodes, or LGADs, are widely considered for fast-timing applications, especially in high energy and nuclear physics, thanks to an intrinsic gain that allows the production of a controlled avalanche of carriers, with multiplication on the order of 2-100. This technology can provide time resolution of about 20-30 ps, and some of its variants can...
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Antonio Gomez Carrera (Universidad de Cantabria and CSIC (ES))17/02/2026, 11:30
Trench-Isolated Low-Gain Avalanche Detectors (TI-LGADs), implement pixel segmentation through physical trenches etched into the silicon substrate and filled with a dielectric material. In this work, we present results from several 120 GeV pion test beam campaign at the CERN SPS, focusing on carbon-infused single-trench TI-LGAD prototypes with varying trench widths. The devices, irradiated with...
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Alessandro Tricoli (Brookhaven National Laboratory (US))17/02/2026, 11:50
Low Gain Avalanche Diodes (LGADs) are prime candidates for high-resolution timing applications in High Energy Physics, Nuclear science, and other fields. When used at hadron colliders, these sensors are required to withstand enormous amounts of radiation while maintaining acceptable performance. When particles interact with highly biased sensors in these high-radiation environments, this can...
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Gaetano Barone (Brown University)17/02/2026, 12:10
Resistive Silicon Devices (RSDs), particularly AC-coupled Low Gain Avalanche Diodes (AC-LGADs), open the path of pico-second level space and time (4D) tracking in high-energy physics (HEP) experiments such as those at the Large Hadron Collider (LHC), Electron-Ion Collider (EIC), and future (lepton) colliders facilities. These sensors combine the fine spatial resolution of segmented detectors...
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Francesca Capocasa17/02/2026, 14:00Poster
The growing demand for semiconductor detectors capable of sensing high-energy photons with exceptional energy resolution has driven interest in high-Z materials. Among these, germanium is particularly attractive not only for its ability to exceed the 20 keV energy threshold of silicon-based devices, but also for offering superior energy resolution compared with other high-Z...
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Dr Felix Ulrich-Pur (TU Wien, Atominstitut)17/02/2026, 14:01Poster
Time-of-flight ion computed tomography (TOF-iCT) is a promising imaging modality for improving dose conformity and range accuracy in ion beam therapy by enabling direct reconstruction of patient stopping power (SP) images using clinical ion beams.
The realisation of TOF-iCT critically depends on detector technologies that combine high spatial precision with ultra-fast timing to enable the...
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Gordana Lastovicka Medin (University of Montenegro (ME))17/02/2026, 14:02Poster
Small-pixel 3D sensors were fabricated by IME-CAS on 8-inch p-type wafers (700 Ω·cm) with a thickness of 30 μm, featuring trench walls (ohmic p⁺) and narrow n⁺ columns (0.5 μm diameter). A 5×5 matrix of 35×35 μm² pixels was characterized using Two-Photon Absorption Transient Current Technique (TPA-TCT); we varied the TPA depth, laser intensity, pulse duration, and bias. At higher bias...
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Lucio Pancheri (University of Trento and TIFPA-INFN)17/02/2026, 14:04Poster
This contribution discusses the path towards the demonstration of hybrid X-ray detectors combining a high-stopping-power perovskite absorption layer and a CMOS silicon active layer with integrated readout electronics. Unlike typical hybrid detectors, the proposed concept features direct electron injection from the perovskite absorber into low-capacitance sensing sites, which is essential for...
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Gordana Lastovicka Medin (University of Montenegro (ME))17/02/2026, 14:05Poster
In this work, we present our studies on the time of arrival and charge collection in various 3D Silicon Double Column Double Type (3D-DCDT) structures. Both single-cell configurations (with the central cell biased and surrounding cells grounded) and multi-cell configurations (with all cells biased) are investigated, considering square and hexagonal arrangements of ohmic (p⁺) cells. The devices...
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Yisheng Fu (Chinese Academy of Sciences (CN))17/02/2026, 14:06Poster
The LHCb experiment is planning a second major upgrade (Upgrade II) in the 2030s, with the goal of increasing the instantaneous luminosity to 1.0x1034 cm−2s−1. This upgrade aims to enhance the study of heavy flavor physics and to search for potential signals of new physics in the beauty and charm quark sectors. To operate under the demanding conditions of Upgrade II—characterized by higher...
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Mei Zhao (Chinese Academy of Sciences (CN))17/02/2026, 14:07Poster
Monolithic chips that integrate sensors and electronics can significantly reduce the material budget and system complexity caused by interconnections. Low Gain Avalanche Detectors (LGADs), featuring picosecond-level time resolution, are widely used in particle physics experiments, and the Monolithic LGAD represents a crucial future development direction for this technology. The monolithic...
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Thomas Senger17/02/2026, 14:08Poster
The Mu3e experiment searches for the charged lepton flavour violating decay μ+→e+e−e+ with a target sensitivity of 10e-16.
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This poster presents the beam-based calibration and tuning studies of the Mu3e Vertex Detector performed during the commissioning run in 2025 at PSI in πe5. The work includes LVDS signal transmission studies, Time-over-Threshold (ToT) adjustment, and per-pixel threshold... -
Wander Baldini (Universita e INFN, Ferrara (IT))17/02/2026, 14:09Poster
The LHCb experiment at CERN plans to have a major upgrade, the so called LHCb Upgrade II, in order to increase the instantaneous luminosity at the LHCb interaction point to ~1.5 x 10^34 cm^-2s^-1 starting from 2035. Increasing the luminosity by a factor of ~7 compared to the current experiment requires major upgrades to the LHCb detectors. Part of the LHCb Upgrade II project is the...
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Arianna Morozzi (INFN, Perugia (IT))17/02/2026, 14:10Poster
Future High Energy Physics (HEP) experiments
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demand particle detectors with unprecedented performance,
particularly in terms of radiation hardness, low power consumption,
and enhanced signal detection in increasingly harsh
environments. This work explores the significant potential of
ferroelectric MOSFETs (FeFETs), leveraging their unique negative
capacitance (NC) properties, as a... -
Michael Grippo (INFN Torino (IT))17/02/2026, 14:11Poster
The Phase-2 upgrade of the CMS pixel tracker for High-Luminosity LHC is entering a crucial stage, with several Inner Tracker components already in production or transitioning from prototyping to full-scale manufacturing. System tests are ongoing to validate the performance of the upgraded detector, and integration is scheduled to begin in 2026 for all Inner Tracker subsystems.
The...
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Dr Sabina Ronchin (FBK)17/02/2026, 14:12Poster
Thanks to their radiation hardness, demonstrated up to a fluence of $3×10^{16}$ 1 MeV $n_{eq}$/$cm^2$, and their fast response times, 3D sensors are among the most promising technologies for meeting the stringent requirements of current and next-generation vertex detectors at the Large Hadron Collider (LHC). FBK has been actively engaged in 3D detector development for many years, introducing...
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Ibrahim Hany (Fondazione Bruno Kessler)17/02/2026, 14:13Poster
FBK has been developing in the past few years a glass-less bulk-TSV (Through-Silicon Via) technology for 2.5D and 3D interconnections of photodetectors, in particular applied to silicon photomultipliers (SiPM). Such development is essential for applications where there is a need for space management, segmentation, or minimization of external optical crosstalk by removing the top wire-bonding...
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Omar Hammad Ali17/02/2026, 14:14Poster
Low-Gain Avalanche Diodes (LGADs) are typically fabricated on p-type substrates, following an n–p⁺–p junction configuration, where a boron-doped layer forms the gain region.
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This architecture is considered optimal for timing and particle-tracking applications since the primary charge carriers initiating the avalanche process are electrons, which feature higher drift velocity and ionization... -
Alfonso Puicercus Gomez (CERN / University of Groningen)17/02/2026, 14:15Poster
The High-Luminosity LHC will expose vertex detectors to unprecedented radiation levels, requiring sensors capable of withstanding high fluences in the $10^{16}-10^{17}\ \text{n}_{\text{eq}}/\text{cm}^2$ range while maintaining excellent spatial and temporal resolution. This work presents the development of 3D silicon pixel sensors for the second upgrade of the LHCb Vertex Locator (VELO),...
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Dr Viktoria Hinger (Paul Scherrer Institut)17/02/2026, 14:16Poster
Inverse Low-Gain Avalanche Diode (iLGAD) sensors with a thin entrance window (TEW) have emerged as a promising technology for extending the applications of hybrid pixel detectors into the soft X-ray regime. The latest iteration of our TEW technology achieves a quantum efficiency exceeding 85% at 250 eV, comparable to state-of-the-art soft X-ray detectors, and the internal charge amplification...
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Emad Shabir Hamdani17/02/2026, 14:17Poster
Owing to their unique characteristics, 3D Silicon pixel sensors are the most radiation hard solution for particle tracking in HEP experiments. Both ATLAS and CMS chose to equip the innermost layers of their upgraded trackers at HL-LHC with 3D pixels, and productions are currently under way. Moreover, 3D pixels are also inherently very fast, allowing for remarkable timing performance both...
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Mr Cristian-Constantin Radulescu (Horia Hulubei National Institute of Physics and Nuclear Engineering (RO)), Lucian Nicolae Cojocariu (Horia Hulubei National Institute of Physics and Nuclear Engineering (RO))17/02/2026, 14:18Poster
The Silicon Photomultiplier (SiPM) technology has become widely embedded within the photo-detection chain of detectors for high energy physics (HEP) experiments. Measuring the radiation hardness of commercial SiPMs involves careful characterisation before and after exposure to neutron or proton beams. Usually, laser beams are used in the measurements to extract the key parameters of SiPMs....
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Elio Sacchetti (Centre National de la Recherche Scientifique (FR))17/02/2026, 14:19Poster
Monolithic active pixel sensor (MAPS) developments have pushed the detection performance in various directions, especially relative to timing where nanosecond-level precision is now considered. This evolution calls for a simultaneous upgrade of the simulation tools. We have developed a simulation flow that covers steps from signal creation in the sensitive volume to the output of the pixel...
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Lukas Mandok17/02/2026, 14:21Poster
Muon Spin Rotation (μSR) is a well-established technique in material science for probing magnetic properties at the atomic scale. However, conventional μSR spectrometers based on plastic scintillators are fundamentally limited by coarse granularity and strict pile-up constraints, which restrict the usable muon rate and prevent spatially resolved measurements.
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To overcome these limitations, we... -
Simone Galletto (Universita e INFN Torino (IT))17/02/2026, 14:22Poster
This study presents parametric and MC analyses of the radiation resistance of compensated LGAD. Starting from measured values of the acceptor and donor removal coefficients, this presentation will illustrate the optimal initial concentrations of donors and acceptors to maximize the extent of LGAD's radiation tolerance. The presentation will provide quantitative predictions of the radiation...
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Fabian Simon Lex (University of Freiburg (DE))17/02/2026, 14:23Poster
Sensors with fast timing capabilities (on the order of tens of picoseconds) are a critical component of future tracking detectors. Such sensors provide the ability to disentangle high multiplicity events and to conduct time of flight measurements for particle ID. Silicon 3D sensors are capable of delivering this temporal resolution and additionally display an excellent radiation hardness,...
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Giacomo Ubaldi (INFN - Istituto Nazionale di Fisica Nucleare Bologna)17/02/2026, 14:25Poster
The main goal of FOOT is to measure double differential fragmentation cross sections of light elements (Z $\le$ 10) in the energy range of 100–1000 MeV/nucleon, of interest both in medical and space-related fields. Particle Therapy is a medical treatment that uses charged particles with a tuned Bragg Peak to maximize the dose to tumors while minimizing damage to healthy tissue. Nevertheless,...
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Christian Scharf (Humboldt University of Berlin (DE))17/02/2026, 14:26Poster
We present a study of the forward and reverse currents in silicon pad diodes irradiated to extreme neutron fluences of up to $1 \times 10^{18}\,n_{eq}/$cm$^2$, slightly more than the expected fluences at the innermost radii of tracking detectors at a future circular hadron collider.
At such high fluences, the low-doped silicon bulk and the highly doped implant no longer behave like a...
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Mr Ling Leander Grimm (KIT - Karlsruhe Institute of Technology (DE))17/02/2026, 14:27Poster
Resistive Silicon Detectors (RSD/ AC-LGAD) are novel silicon detectors capable of both precise spatial and temporal resolution. Such sensors will be essential for the next generation of particle colliders (EIC, FCC-ee, CEPC, FCC-hh) and would enable the possibility of a 4D tracker. RSD sensors are typically fabricated with a pixel-like geometry that provides excellent spatial resolution in the...
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Tobias Michel (Universität der Bundeswehr München)17/02/2026, 14:28Poster
X-ray fluorescence with silicon drift detectors (SDDs) is an effective method for raw material extraction and recycling. These systems require a large number of detectors to be fitted in a very small space. Therefore, miniaturizing the current external power supply by means of an integrated, space-saving charge pump circuit is very advantageous
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This work presents an application-specific... -
Eva Fialova (CERN)17/02/2026, 14:29Poster
For the High-Luminosity LHC, the CMS detector will undergo a significant upgrade that includes the installation of the High Granularity Calorimeter (HGCAL), which will employ 8-inch n-on-p silicon sensors. To ensure their reliable operation under the extreme radiation environment of HL-LHC, dedicated studies of surface radiation damage in the SiO₂ passivation layer are being carried out. These...
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Benjamin Stuart Urbach (The University of Edinburgh (GB))17/02/2026, 14:30Poster
This study investigates the gain behavior and time resolution of novel small pitch, 250 µm-thick, Trench-isolated Low Gain Avalanche Detectors (TI-LGADs) fabricated by
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Micron Semiconductor Ltd. Sentaurus TCAD software was used to model charge distribution and fields within each of the designs before fabrication. Single Photon Absorption Transient Current Technique (SPA-TCT) characterization... -
Clarissa Buti (Universita e INFN, Firenze (IT))17/02/2026, 14:31Poster
Diamond detectors with electrodes orthogonal to the surface, engraved via laser-induced graphitization, are full-carbon sensors of interest for a wide range of applications, spanning from High Energy Physics to Nuclear Medicine and dosimetry.
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In recent years, significant progress has been made in graphitization techniques, enabling the fabrication of lower-resistance electrodes. This has... -
Afiq Azraei Bin Rishinsa (Heidelberg University (DE))17/02/2026, 14:32Poster
The Mu3e Experiment aims to observe charged lepton flavor violation via the e+e-e+ channel with a Phase-I goal of single event sensitivity down to 2 10^-15 on the branching ratio. The experimental detector is being actively constructed and commissioned at the Paul Scherrer Institute (PSI), where it will be subjected to 10^8 muon stops per second at the piE5 beam-line. In order to sift through...
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Elisa Sanzani (Universita Di Bologna (IT))17/02/2026, 14:33Poster
Accurate luminosity measurements are essential for stable machine operation and precision physics at the High-Luminosity LHC (HL-LHC), where pileup levels exceeding 140 interactions per bunch crossing impose stringent requirements on fast and radiation-tolerant instrumentation. The Beam Monitoring detector for ATLAS (BMA) is a newly developed luminosity system designed to deliver robust,...
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Paolo Gandini (INFN Milano (IT))17/02/2026, 14:34Poster
ALADDIN (An LHC Apparatus for Direct Dipole moments INvestigation, https://aladdin.web.cern.ch/) is a proposed compact fixed-target experiment at the LHC, designed to enable precise measurements of charm baryon electromagnetic dipole moments. The experiment leverages an innovative storage-ring layout that redirects protons from the beam halo onto a solid target, coupled with a bent crystal....
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Marco Toffano (Universita e INFN, Padova (IT))17/02/2026, 14:35Poster
The new readout electronics of the CMS Drift Tubes detector has been evaluated in terms of its reliability. Starting with a brief overview of the main board functionalities, operating requirements and critical elements, a first estimation of the hardware robustness with respect to expected faults in time is then presented. A global figure of merit is derived by means of a custom-developed...
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Simon Emanuel Waid (Austrian Academy of Sciences (AT))17/02/2026, 14:36Poster
Carbon-ion radiotherapy (CIRT) is a lifesaving technique for treating radioresistant cancer. Recent clinical evidence shows that besides the applied radiobiological effective (RBE) dose, the averaged values of the linear energy transfer (LET) in the irradiated volume are correlated to the tumor control. Probability density distributions of LET are currently based on simulations and show high...
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Mr Xiangyu Xie (Paul Scherrer Institut)17/02/2026, 14:37Poster
The MÖNCH detector [1], a charge integrating hybrid pixel detector with 25 um pixel pitch, has demonstrated micrometer-scale spatial resolution [2] via the η-interpolation method, enabling applications like energy-resolved X-ray imaging. However, this performance is restricted to low photon fluxes (~105 ph/s/mm2), as η-interpolation relies on spatially isolated single-photon events, hindering...
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Khaoula Aouadj (Istituto Nazionale di Fisica Nucleare)17/02/2026, 14:38Poster
The 4H-SiC material offers high thermal conductivity, very low dark currents, high saturation velocity, high breakdown voltage, and possible advantages in radiation hardness. These intrinsic properties make it well-suited for high-radiation environments. Moreover, recent advances in SiC power electronic devices and substrate fabrication have enabled the production of high-quality, thick,...
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Iveta Zatocilova (University of Freiburg (DE))17/02/2026, 14:39Poster
In the CMOS Strips Project, passive silicon strip sensors were designed by a collaboration of German institutes and fabricated in LFoundry. The sensors serve as a proof of principle to show that the CMOS technology brings a suitable solution for the fabrication of silicon strip sensors in the strip lengths required for high energy physics experiments. In this study, the TCAD simulations...
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Dr Vagelis Gkougkousis (University of Zurich)17/02/2026, 14:40Poster
The unparalleled sensitivity achieved with skipper CCDs, coupled with ultra-pure high-resistivity substrates (>22 kOhm×cm) and cryogenic operation, has rekindled interest in this technology for low-background experiments (DAMIC@SNOLAB, DAMIC-M, SENSEI, and OSCURA) Such devices offer sub-electron noise resolution, enabling the detection of extremely low-energy interactions critical for...
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Ajay Sharma (University Of Padova / INAF-OAS-Bologna)17/02/2026, 14:41Poster
We present the design and implementation of a custom Test Equipment (TE) developed for the experimental characterization of Front-End Electronics (FEE) ASICs for Silicon Drift Detectors (SDDs).
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The TE is tailored for NOVA and similar multi-channel, low-noise mixed-signal FEEs designed for X-ray and gamma-ray detection in space-borne high-energy astrophysics missions. Built around a Xilinx... -
Austin Schmier (Universita degli Studi di Trento and INFN (IT))17/02/2026, 14:42Poster
The ATLAS inner detector will be completely replaced with a new all-silicon tracking system (ITk) during the 2027–2029 shutdown, in order to operate under the demanding conditions of the High-Luminosity LHC. The innermost component of the ITk will be the pixel detector. Its Layer 0 will employ 3D sensor technology, designed to withstand fluences up to 1.7 × 10¹⁶ neq/cm², while the outer layers...
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Leena Diehl (University of Zurich (CH))17/02/2026, 14:43Poster
To face the higher levels of radiation due to the 10-fold increase in integrated luminosity during the High Luminosity LHC the CMS detector will replace the current endcap calorimeters with the new High Granularity Calorimeter (HGCAL). The electromagnetic section as well as the high-radiation regions of the hadronic section of the HGCAL (fluences above $10^{14} n_{eq}/cm^2$) will be equipped...
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Luca Baudino (Universita e INFN Torino (IT))17/02/2026, 14:44Poster
Aluminum PCBs are widely used in particle physics experiments because they offer a significantly lower material-budget than traditional copper-based solutions ($\mathrm{X_{0}: Al} \approx 8.89 \mathrm{\ cm, Cu} \approx 1.43 \mathrm{\ cm}$). This approach has already been adopted in several major experiments, such as ALICE ITS1/ITS2 and STAR. The integration of low-material-budget...
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Smiriti Srivastava (INAF OAS Bologna, Italy)17/02/2026, 14:45Poster
Next generation of high energy astrophysics missions require state-of-art Silicon based X-ray detectors to operate with maximum sensitivity, broad energy passband and microsecond timing resolution. Such high requirements demand minimal optical light contamination from outer space. While off-chip filter assemblies currently meet these operational requirements, they can degrade low energy X-ray...
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Dr Francesca Romana for the pSCT Collaboration pantaleo (Dipartimento Interateneo dell'Università e del Politecnico di Bari, INFN Bari)17/02/2026, 14:46Poster
The field of very-high-energy gamma-ray astrophysics is poised for a significant leap in sensitivity with the advent of the Cherenkov Telescope Array Observatory (CTAO), which will operate from two locations to achieve full-sky coverage. Among the proposed instruments for the medium-sized telescope (MST) class at the CTAO-South site is the Schwarzschild-Couder Telescope (SCT). This telescope...
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Khalil El Achi17/02/2026, 14:47Poster
Particle and radiation therapy are leading tactics to combat chronic and malignant cancers. Ultra-high dose rate proton therapy promises higher radiobiological advantage and increased effectiveness in targeting tumor cells while sparing healthy cells, by providing the total dose in a short time at a rate higher than 40 Gy/s .
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This work aims to characterize the charge acquisition of... -
Guru Reddy (Kansas State University (US))17/02/2026, 14:48Poster
The CMS Silicon Pixel detector, the innermost component of the CMS silicon tracking system, plays a critical role in reconstructing charged-particle trajectories and identifying primary and secondary vertices in the high-luminosity environment of the LHC. Since the start of Run 3, the detector has been exposed to increasingly demanding conditions, including average pileup above 60 and particle...
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Lucrezia Boccardo (INFN e Universita Genova (IT))17/02/2026, 15:50
For the High Luminosity upgrade of the Large Hadron Collider, the current ATLAS Inner Detector will be replaced by an all-silicon Inner Tracker (ITk). The installation is foreseen during the next LHC Long Shut Down 3 (2026-2030). The new tracker has been designed to face the challenging environment associated with the high number of collisions per bunch crossing and the expected large...
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Anna Gianatti (INFN e Universita Genova (IT))17/02/2026, 16:10
The CMS Precision Proton Spectrometer (PPS) was designed for measuring protons that escape along the LHC beam line after the interaction in CMS. It successfully took data during the LHC Run 2, collecting more than 110 fb-1 of integrated luminosity, and since 2022 is taking data in Run 3, having already collected more than 230 fb-1. The PPS tracker was substantially upgraded in preparation for...
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Angelo Loi17/02/2026, 16:30
Within the INFN OPTIME project, we present the latest characterization results of a novel 3D silicon sensor developed as a core component of a multistage photo-detector system for fast timing with resolutions below the ps threshold. The presented device is based on FBK double-sided 3D silicon technology and is optimized for low-energy electrons and photon detection. Extensive electrical and...
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Davide Zuolo (University of Colorado - Boulder (US))17/02/2026, 16:50
10 years ago the journey of 3D sensors in CMS began with a test beam at the Fermilab Test Beam Facility. The first FBK prototype sensors featuring pixel cells with 100 x 150 $\mu m^2$, same as the current CMS pixel detector, were bump bonded to the PSI46digv2 readout chip and measured on beam. Performance well beyond the best expectations were observed and paved the way to the development of...
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Marko Puklavec (Jozef Stefan Institute (SI))17/02/2026, 17:10
Small pixel 3D sensors were produced by IME-CAS on 8-inch p-type wafers of 700 Ωcm. The 30 μm thick silicon detectors have trench walls (ohmic p+) and very narrow n-column columns with a diameter of only 0.5 μm. A 5 × 5 matrix of 35 ×35 μm2 was measured with Two Photon Absorption Transient Current Technique as well as with minimum ionizing electrons from 90Sr source. At higher voltages the...
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Michael Moll (CERN)18/02/2026, 09:00
Radiation damage is a concern for employing LGADs in the precision timing detectors at the HL-LHC and for other LGAD applications in strong radiation fields. The origin of the radiation induced loss of gain is found in a reduction of electric field strength in the highly doped gain layer, caused by an apparent de-activation of the acceptor doping and the formation of other defects impacting on...
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Artem Shepelev (University of Birmingham (GB))18/02/2026, 09:25
The work presents a detailed study of the timing performance and its spatial variation within the pixel of planar sensors, using the high-resolution TimePix4 beam telescope for precise, track-referenced measurements. Sensors of 200, 100, and 50 um thickness were coupled to the trigger-less TDCpix ASIC with 100 ps timestamping, originally developed for the NA62 GigaTracker at CERN. Tests were...
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Kazu Akiba (Nikhef National institute for subatomic physics (NL)), Sara Cesare (CERN)18/02/2026, 09:45
LHCb plans an Upgrade II detector for 2034 to operate at luminosities of 1.0x10$^{34}cm^{-2}s^{-1}$, accumulating over 300 fb$^{-1}$. This will result in about 30 interactions per crossing, producing approximately 1500 charged particles within acceptance.
The higher luminosity requires a new VErtex LOcator (VELO) with enhanced capabilities to handle increased data rates, radiation levels,...
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Mr Xiangyu Xie (Paul Scherrer Institut)18/02/2026, 10:05
Doping concentration is a fundamental property in semiconductor manufacturing influencing the electrical properties and reliability of silicon sensors. Three-dimensional mapping of dopant distribution provides a deeper understanding of sensor characteristics, including depletion voltage, breakdown behavior, and charge collection properties. Uniform doping across large sensor areas and depths...
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Gizem Gul Dincer (KIT - Karlsruhe Institute of Technology (DE))18/02/2026, 10:25Oral
The CMS detector at the CERN Large Hadron Collider is undergoing major upgrades for the High-Luminosity LHC (HL-LHC), including the replacement of its endcap calorimeters with the High Granularity Calorimeter (HGCAL). The electromagnetic section (CE-E) and the high-radiation regions of the hadronic section (CE-H) will employ radiation-tolerant, fast-response silicon pad sensors, collectively...
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Pablo Fernandez-Martinez (IMB-CNM, CSIC)18/02/2026, 11:05
n-type LGAD detectors, with a p++/n+/n/n++ structure, are an emerging technology for the detection of shallow-penetrating radiation. However, experiments show that their gain layer is prone to radiation damage, exhibiting a more pronounced vulnerability compared to p-substrate LGADs. This effect was studied in our previous work and attributed to the donor removal mechanism, which remains under...
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Ludovico Massaccesi18/02/2026, 11:25
We present the results from a new batch of silicon sensors with internal gain produced by the Fondazione Bruno Kessler (FBK, Italy). The sensors are p-in-n Low-Gain Avalanche Diodes, in which the high-concentration implant responsible for signal multiplication is formed by an n-type dopant (nLGAD). The nLGADs are made on thin epitaxial-type substrates, with an active thickness of 55 $\mu$m. A...
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Kevin Lauer (CIS Institut fuer Mikrosensorik GmbH (DE))18/02/2026, 11:45
Kevin Lauer,1 Thomas Klein,1 Stephanie Reiss,1 Christian Möller,1 Thomas Ortlepp,1 Stefan Meyer2 and Wolfgang Berger2
1CiS Forschungsinstitut für Mikrosensorik GmbH, Konrad-Zuse-Str. 14, 99099 Erfurt, Germany
2Carl Zeiss Microscopy GmbH, Carl-Zeiss-Straße 22, 73446 Oberkochen, GermanyLow gain avalanche detectors (LGAD) are used to detect photons and particles with a medium internal...
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Francesca Capocasa18/02/2026, 12:05
Recent developments in X-ray technology have highlighted a significant gap between the advancements in X-ray facility capabilities and the corresponding limitations in detector technologies, especially in the soft X-ray energy range (200 eV to 2 keV). While hybrid pixel detectors are the standard for higher-energy X-ray applications (2–20 keV), their implementation in the soft X-ray regime...
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Peter Svihra (Czech Academy of Sciences (CZ), Czech Technical University in Prague (CZ))18/02/2026, 14:05
This talk reviews the development of 4H-SiC Low Gain Avalanche Detectors as a next step in wide bandgap sensor technology. It will outline the material advantages of 4H-SiC including radiation hardness, thermal stability, and high breakdown strength, and then focus on the ongoing LGAD program led by the Czech collaboration with onsemi together with partners within DRD3 WG6.
A central part...
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Matthias Knopf18/02/2026, 14:30
Detector characterization and instrumentation testing are routinely conducted at synchrotron and cyclotron facilities, many of which were originally designed for medical purposes. In experiments that rely on single-particle resolution—where pileup can severely impact data quality—detailed knowledge of the beam structure is essential for selecting appropriate readout parameters. However, this...
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Sebastian Onder (Austrian Academy of Sciences (AT))18/02/2026, 14:50
4H silicon carbide (4H-SiC) is emerging as a promising candidate for radiation sensors in high-energy physics, medicine, and high-temperature environments. It offers intrinsically low leakage currents, even after irradiation, together with fast charge-carrier transport and excellent thermal stability. Historically, studies of 4H-SiC detectors were constrained by the limited access to advanced...
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Jack Nickson (IMB-CNM)18/02/2026, 15:10
Wide band-gap (WBG) materials such as GaN and SiC are playing an increasingly important role in modern high-frequency and high-power electronic technologies. As advances in bulk growth continue to lower defect densities and improve crystalline quality, these semiconductors are also emerging as strong contenders for next-generation radiation detectors. Nevertheless, extensive optimisation and...
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Alessandro Fondacci (University and INFN Perugia (IT))18/02/2026, 16:00
Doping removal—whether acceptor or donor—is a well-known effect of radiation damage in silicon detectors, and has been extensively characterized at the low doping levels typical of conventional silicon substrates. The development of Low Gain Avalanche Diode (LGAD) technology has pushed detailed studies of acceptor removal at high initial concentrations ($> 10^{16}$ at/cm$^3$). With the...
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Marco Bomben (APC & Université Paris Cité, Paris (FR)), Tommaso Croci (INFN, Perugia Unit)18/02/2026, 16:20
At the High Luminosity Large Hadron Collider (HL-LHC), silicon pixel detectors will be exposed to radiation fluences about 5 to 10 times larger than those experienced by the current innermost pixel layers up to today.
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Signal loss will be the main limitation to tracking and vertexing performance due to radiation damage in hybrid pixel detectors, with the increase in leakage current and... -
Tommaso Croci (INFN, Perugia Unit)18/02/2026, 16:40
The increasing radiation levels expected in future high-luminosity collider experiments demand robust predictive models for the design and optimisation of semiconductor particle detectors operating under extreme fluences (above $1 \cdot 10^{16}\,\mathrm{1\,MeV}\,n_{eq}/\mathrm{cm}^{2}$). Although TCAD-based modelling of radiation damage has evolved over the past two decades, a general-purpose...
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Roberta Arcidiacono (Universita' del Piemonte Orientale e INFN Torino (IT))19/02/2026, 09:00
The DC-RSD is a thin LGAD sensor with a resistive DC-coupled read-out, that uses internal gain and intrinsic charge sharing to achieve excellent 4D-tracking capability with low electrodes density.
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The DC-RSD1 production comprises matrices with both small and large pixels, and strips, with technological variations of electrode layout and resistive layer levels to investigate charge sharing and... -
Matteo Duranti (Universita e INFN, Perugia (IT))19/02/2026, 09:25
In the context of the Pentadimensional Tracking Space Detector project (PTSD), we are currently developing a demonstrator to increase the Technological Readiness Level of LGAD Si-microstrip tracking detectors for applications in space-borne instruments. Low Gain Avalanche Diodes (LGAD) is a consolidated technology developed for particle detectors at colliders which allows for simultaneous and...
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Jerzy Pietraszko19/02/2026, 09:45
The essential performance criteria for novel 4D tracking sensors are high-precision timing, fine spatial resolution, high-rate capability, and low material budget.
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Low Gain Avalanche Diode (LGAD) sensors provide this combination of capabilities, which makes them valuable in high-energy physics, nuclear experiments, beam monitoring, and medical applications such as ionCT.
While widely used... -
Luca Menzio (Universita e INFN Torino (IT))19/02/2026, 10:05
Over the last decade, Low-Gain Avalanche Diode sensors (LGADs) and Resistive Silicon Detectors (RSDs) have significantly advanced silicon detector capabilities. LGAD sensors provide much improved time resolution thanks to the fast and large signals with optimized signal-to-noise ratio, achieving resolutions of 30 ps with 50 um-thick sensors. The addition of a resistive read-out to LGADs, as in...
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Andrew Donald Gentry (University of New Mexico (US))19/02/2026, 10:45
Bulk and surface defects in semiconductor devices are known to cause negative effects, including increased leakage current and increased charge trapping. Radiation from both high energy photons and particles (typically neutrons or protons) increases these negative effects, and will eventually render the device unusable. Previous studies have been performed demonstrating microwave annealing as...
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.Yoshiyuki Onuki (University of Tokyo)19/02/2026, 11:05
The Belle II experiment at the asymmetric energy e- and e+ collider SuperKEKB provides rich flavor physics programs of beauty, charm, light quarks and tau-lepton at the luminosity frontier. Thanks to its nano-beam scheme, SuperKEKb holds the world's highest instantaneous luminosity record of $5 \times 10^{34}$ $cm^{-2}s^{-1}$, and aims to push up to $6 \times 10^{35}$ $cm^{-2} s^{–1}$ after...
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Frédéric Zanella19/02/2026, 11:25
Microlens arrays (MLAs) are widely employed for beam homogenisation and shaping, either as stand-alone optics or integrated with active components such as wafer-level optics (WLO). In image sensors, each microlens—commonly called an on-chip lens (OCL)—directs incoming light toward the active area of the pixel, improving photo detection efficiency (PDE) by boosting the effective fill factor....
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Gaia Fabbri (Universita e INFN, Bologna (IT))19/02/2026, 11:45
ALICE 3 is an innovative experiment that will be installed at the LHC during Long Shutdown 4, replacing the current ALICE detector, and will operate in Run 5 (2036-2041). The new apparatus will be equipped with compact silicon-based timing detector to provide an excellent electron identification capability up to 500 MeV/c and $\pi/K$ separation up to 2 GeV/c over a wide rapidity range. The...
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Federico Cittadini (Università di Padova & INFN Perugia)19/02/2026, 12:05
The INFN HASPIDE experiment is based on the development of innovative solid-state sensors made of hydrogenated amorphous silicon (a-Si:H). In these sensors, an extremely thin (2 − 10 𝜇𝑚) a-Si:H layer is included between two electrodes, acting as a sensitive volume for detecting ionizing radiation. The a-Si:H layer is deposited on Kapton to obtain thin, flexible devices in particular for...
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Pau Fuste Martin (The Barcelona Institute of Science and Technology (BIST) (ES))19/02/2026, 14:05
The High-Luminosity phase of the LHC (HL-LHC) will bring an increase in the instantaneous luminosity of the present accelerator by a factor of 7.5, leading up to 200 interactions per bunch crossing. This extreme pile-up environment will be a challenge for the track reconstruction performance of ATLAS, particularly in the forward region. To address this, the High-Granularity Timing Detector...
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Florent Dougados (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))19/02/2026, 14:25
IMB-CNM has been a main actor in the development of Low Gain Avalanche Detectors since the initial device conception, more than a decade ago. One of the challenges for LGAD is the deterioration of the gain and timing resolution after radiation damage due to the acceptor removal mechanism. A well-established solution to increase radiation tolerance is carbon co-doping in the gain layer.
The...
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Koji Nakamura (KEK High Energy Accelerator Research Organization (JP))19/02/2026, 14:45
Low-Gain Avalanche Diodes (LGADs) provide excellent timing resolution on the order of 20 ps and are strong candidates for several collider experiments, both as 4D tracking detectors and as timing layers for particle identification. LGADs with capacitively coupled electrodes (AC-LGADs) achieve highly uniform gain and electric fields, enabling fine pixelation without dead regions. These features...
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Tjip Bischoff (Nikhef National institute for subatomic physics (NL))19/02/2026, 15:05
The realization of 4D tracking with simultaneous micrometer spatial and picosecond temporal resolution relies not only on sensor technology but also on a precise understanding and calibration of the readout electronics. While Trench-Isolated Low-Gain Avalanche Detectors (TI-LGADs) offer the necessary segmentation and intrinsic gain, this high level of segmentation necessitates a dedicated...
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Sebastian Haberl (University of Innsbruck (AT))19/02/2026, 15:55
Future high-energy physics experiments require tracking detectors with improved timing and spatial resolution, combined with a low material budget. The CASSIA (CMOS Active Sensor with Internal Amplification) project addresses these requirements by developing a monolithic pixel detector with internal amplification, achieved through the implementation of gain layers in an industrial 180 nm CMOS...
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Luca Palini (Università degli Studi e INFN Milano (IT))19/02/2026, 16:15
The IGNITE project develops technical solutions for the next generation of trackers at colliders. It plans to implement an integrated module, comprising sensor, electronics, and fast readout, aimed at fast 4D-tracking. System pixels are required to have pitch around 50 µm and time resolution below 30 ps on the full chain (from sensor to time to digital conversion).
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In the present paper we... -
Juliette Martin (University of Edinburgh), Juliette Martin (The University of Edinburgh, TRIUMF), Juliette Martin (University College London (GB)), Juliette Martin (UCL)19/02/2026, 16:35
The upgrade of the LHC to the high luminosity LHC (HL-LHC) by the end of this decade will impose significant challenges on the detectors of the LHC experiments. Increased luminosity of up to 7.5 10^34cm^−2s^−1 with up to 200 simultaneous p-p interactions per bunch crossing and foreseen run-times equivalent to up to 4000 fb-1 make it necessary to develop new detectors that can cope with the...
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Zijun Xu (Institute of High Energy Physics, Chinese Academy of Sciences)19/02/2026, 16:55
The HVCMOS technology is promising technology for tracking detectors at future experiments such as LHCb upgrade and Higgs factories, for its radiation hardness, fast charge collection and hence good spatial and timing resolution. Development of HVCMOS in smaller feature size will allow more functionalities in the same pixel area, and a reduced power consumption. We proposed a project to...
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Ufuk Guney Tok (Cukurova University (TR))Planar sensorsOral
The CMS detector at the CERN Large Hadron Collider is undergoing major upgrades for the High-Luminosity LHC (HL-LHC), including the replacement of its endcap calorimeters with the High Granularity Calorimeter (HGCAL). The electromagnetic section (CE-E) and the high-radiation regions of the hadronic section (CE-H) will employ radiation-tolerant, fast-response silicon pad sensors, collectively...
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