Beam test results of 25 and 35 m thick FBK ultra-fast silicon detectors
CERN, Geneva, Switzerland
2 Dipartimento Fisica e Astronomia dell’Università, Bologna, Italy
3 INFN, Bologna, Italy
4 INFN, Torino, Italy
5 Università degli Studi di Torino, Torino, Italy
6 Università del Piemonte Orientale, Novara, Italy
7 Fondazione Bruno Kessler, Trento, Italy
8 Università di Trento, Povo, Italy
9 TIFPA, Trento, Italy
Accepted: 19 December 2022
Published online: 30 January 2023
This paper presents the measurements on first very thin Ultra-Fast Silicon Detectors (UFSDs) produced by Fondazione Bruno Kessler; the data have been collected in a beam test setup at the CERN PS, using beam with a momentum of 12 GeV/c. UFSDs with a nominal thickness of 25 and 35 m and an area of 1 1 have been considered, together with an additional HPK 50-m thick sensor, taken as reference. Their timing performances have been studied as a function of the applied voltage and gain. A time resolution of about 25 ps and of 22 ps at a voltage of 120 and 240 V has been obtained for the 25 and 35 m thick UFSDs, respectively.
© The Author(s) 2023
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