Towards the development of a SiPM-based module for the camera of the Schwarzschild-Couder Telescope prototype of the Cherenkov Telescope Array

G. Ambrosi; M. Ambrosio; C. Aramo; E. Bissaldi; A. Boiano; C. Bonavolontà; L. Di Venere; M. De Lucia; E. Fiandrini; N. Giglietto; F. Giordano; M. Ionica; F. Licciulli; S. Loporchio; V. Masone; R. Paoletti; V. Postolache; A. Rugliancich; D. Simone; V. Vagelli; M. Valentino

doi:10.1117/12.2272982

24 August 2017 Towards the development of a SiPM-based module for the camera of the Schwarzschild-Couder Telescope prototype of the Cherenkov Telescope Array

G. Ambrosi, M. Ambrosio, C. Aramo, E. Bissaldi, A. Boiano, C. Bonavolontà, L. Di Venere, M. De Lucia, E. Fiandrini, N. Giglietto, F. Giordano, M. Ionica, F. Licciulli, S. Loporchio, V. Masone, R. Paoletti, V. Postolache, A. Rugliancich, D. Simone, V. Vagelli, M. Valentino

Author Affiliations +

Proceedings Volume 10392, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX; 1039209 (2017) https://doi.org/10.1117/12.2272982
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

The Italian Institute of Nuclear Physics is currently involved in the development of a prototype for a camera based on Silicon Photomultipliers (SiPMs) for the Cherenkov Telescope Array (CTA), a new generation of telescopes for ground{based gamma{ray astronomy. In recent years, SiPMs have proven to be highly suitable devices for applications where high sensitivity to low{intensity light and fast responses are required. Among their many advantages are their low operational voltage when compared with classical photomultiplier tubes, mechanical robustness, and increased photo{detection efficiency (PDE). Moreover, due to the possibility of operating them during bright moonlight, SiPMs can therefore considerably increase telescope duty cycle.

Here we present a full characterization of a particular type of SiPM produced in Italy by the Fondazione Bruno Kessler, which is suitable for Cherenkov light detection in the Near-Ultraviolet (NUV). This device is a High{Density (HD) NUV SiPM, based on a micro cell of 40 μm × 40 μm and with an area of 6×6 mm², providing low levels of dark noise and high PDE peaking in the NUV band. NUV-HD SiPMs will be arranged in a matrix of 8×8 single units to become part of the focal plane of the Schwarzschild-Couder Telescope prototype for CTA. An update on recent tests of the front-end electronics based on signal sampling with the TARGET-7 chip will be given as well.

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G. Ambrosi, M. Ambrosio, C. Aramo, E. Bissaldi, A. Boiano, C. Bonavolontà, L. Di Venere, M. De Lucia, E. Fiandrini, N. Giglietto, F. Giordano, M. Ionica, F. Licciulli, S. Loporchio, V. Masone, R. Paoletti, V. Postolache, A. Rugliancich, D. Simone, V. Vagelli, and M. Valentino "Towards the development of a SiPM-based module for the camera of the Schwarzschild-Couder Telescope prototype of the Cherenkov Telescope Array", Proc. SPIE 10392, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX, 1039209 (24 August 2017); https://doi.org/10.1117/12.2272982

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