Development of CMOS LGAD sensors for the ALICE~3 Time of Flight detector

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1. Verfasser: Follo, Umberto
Format: Preprint
Veröffentlicht: 2026
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author Follo, Umberto
author_facet Follo, Umberto
contents The next-generation ALICE 3 experiment at the High-Luminosity LHC (HL-LHC) requires detector technologies that combine fine spatial resolution, fast timing, and an extremely low material budget. This paper presents the design, characterization, and beam-test performance of MadPix, a monolithic CMOS sensor featuring an internal avalanche gain layer. The sensor is implemented in a 110 nm CMOS imaging process and demonstrates the portability of the Low Gain Avalanche Diode concept to a standard CMOS technology. The results showed an intrinsic gain between 10 and 13 and a time resolution of 75 ps.
format Preprint
id arxiv_https___arxiv_org_abs_2601_02823
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Development of CMOS LGAD sensors for the ALICE~3 Time of Flight detector
Follo, Umberto
Instrumentation and Detectors
High Energy Physics - Experiment
The next-generation ALICE 3 experiment at the High-Luminosity LHC (HL-LHC) requires detector technologies that combine fine spatial resolution, fast timing, and an extremely low material budget. This paper presents the design, characterization, and beam-test performance of MadPix, a monolithic CMOS sensor featuring an internal avalanche gain layer. The sensor is implemented in a 110 nm CMOS imaging process and demonstrates the portability of the Low Gain Avalanche Diode concept to a standard CMOS technology. The results showed an intrinsic gain between 10 and 13 and a time resolution of 75 ps.
title Development of CMOS LGAD sensors for the ALICE~3 Time of Flight detector
topic Instrumentation and Detectors
High Energy Physics - Experiment
url https://arxiv.org/abs/2601.02823