21st "Trento" Workshop on Advanced Silicon Radiation Detectors

Session

Planar Devices

18 Feb 2026, 09:25

Sala dei Notari (Palazzo dei Priori, Perugia, Italy)

Conveners

Planar Devices

• Claudia Gemme (INFN Genova (IT))

97. The impact of weighting field on timing response of planar pixel sensors measured using TDCpix modules and Timepix4 telescope

Artem Shepelev (University of Birmingham (GB))

18/02/2026, 09:25

Planar sensors

Oral

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...

188. Sensor R&D for VELO Upgrade 2

Kazu Akiba (Nikhef National institute for subatomic physics (NL)), Sara Cesare (CERN)

18/02/2026, 09:45

Planar sensors

Oral

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,...

94. Profiling 3D Doping Concentration for Silicon Sensors

Mr Xiangyu Xie (Paul Scherrer Institut)

18/02/2026, 10:05

Planar sensors

Oral

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...

117. Silicon quality control results from the production phase and annealing of radiation defects of the CMS HGCAL Silicon Sensors

Gizem Gul Dincer (KIT - Karlsruhe Institute of Technology (DE))

18/02/2026, 10:25

Oral

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...