Measurements and tests on FBK silicon sensors with an optimized electronic design for a CTA camera

TL;DR

This paper reports on measurements and tests of FBK silicon sensors with optimized electronics designed to improve signal quality for Cherenkov Telescope Array cameras, focusing on tail cancellation in high-background conditions.

Contribution

It presents new sensor and electronic prototype designs optimized for tail cancellation, enhancing signal sampling for CTA applications.

Findings

Improved electronic design reduces signal tail duration.

Sensor tests demonstrate reliable performance under high-background conditions.

Optimized electronics enhance signal clarity for Cherenkov detection.

Abstract

In October 2013, the Italian Ministry approved the funding of a Research & Development (R&D) study, within the "Progetto Premiale TElescopi CHErenkov made in Italy (TECHE)", devoted to the development of a demonstrator for a camera for the Cherenkov Telescope Array (CTA) consortium. The demonstrator consists of a sensor plane based on the Silicon Photomultiplier (SiPM) technology and on an electronics designed for signal sampling. Preliminary tests on a matrix of sensors produced by the Fondazione Bruno Kessler (FBK-Trento, Italy) and on electronic prototypes produced by SITAEL S.p.A. will be presented. In particular, we used different designs of the electronics in order to optimize the output signals in terms of tail cancellation. This is crucial for applications where a high background is expected, as for the CTA experiment.