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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Use of the Peak-Detector mode for gain calibration of SiPM sensors with ASIC CITIROC read-out

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Author(s):
Impiombato, D. [1] ; Segreto, A. [1] ; Catalano, O. [1] ; Giarrusso, S. [1] ; Mineo, T. [1] ; Project, ASTRI
Total Authors: 6
Affiliation:
[1] INAF, Via U La Malfa 153, I-90146 Palermo - Italy
Total Affiliations: 1
Document type: Journal article
Source: Journal of Instrumentation; v. 15, n. 4 APR 2020.
Web of Science Citations: 0
Abstract

The ASIC CITIROC is a 32-channel fully analogue front-end ASIC dedicated to the read-out of silicon photo-multiplier (SiPM) sensors that can be used in a variety of experiments with different applications: nuclear physics, medical imaging, astrophysics, etc. For each channel, two parallel AC coupled voltage preamplifiers, one for the high gain and one for the low gain, ensure the read-out of the charge from 160 fC to 320 pC (i.e. from 1 to 2000 photo-electrons with SiPM gain = 10(6), with a photo-electron to noise ratio of 10). The signal in each of the two preamplifier chains is shaped and the maximum value is captured by activating the peak detector for an adjustable time interval. In this work, we illustrate the peak detector operation mode and, in particular, how this can be used to calibrate the SiPM gain without the need of external light sources. To demonstrate the validity of the method, we also present and discuss some laboratory measurements. (AU)

FAPESP's process: 13/10559-5 - Investigation of high energy and plasma astrophysics phenomena: theory, numerical simulations, observations, and instrument development for the Cherenkov Telescope Array (CTA)
Grantee:Elisabete Maria de Gouveia Dal Pino
Support Opportunities: Special Projects