Beam test results for the Endcap Timing ReadOut Chip (ETROC2) for CMS ETL upgrade

Beam test results for the Endcap Timing ReadOut Chip (ETROC2) for CMS ETL upgrade

연구 분야: Databases

학회: 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD)

The Endcap Timing ReadOut Chip (ETROC) for the Compact Muon Solenoid (CMS) Minimum ionizing particle Timing Detector (MTD) is designed to process Low Gain Avalanche Diode (LGAD) signals with a time resolution of 40-50ps per hit, with 30-35 ps per charged particle using twolayer detector. The ETROC2, is the first full size (16 x 16 pixels) and full functionally design that has been tested in hadron and electron beams at CERN and DESY (Sep 2023 - Aug 2024). Precision timing studies at these test beams are done using a self-referential beam telescope composed of up to 4 layers/chips. This talk describes the ETROC2 beam telescope and summarizes the performance of the ETROC2 chips bump-bonded to (16x16) Fondazione Bruno Kessler (FBK) and Hamamatsu Photonics K.K. (HPK) LGAD sensors using results from recent test beams. The experiences and lessons learned during these test beams are also detailed in this talk.