First Demonstration of the Use of LG-SiPMs for Optical Readout of a TPC

Gola, A, Majumdar, K ORCID: 0000-0003-3473-2376, Casse, G ORCID: 0000-0002-8516-237X, Mavrokoridis, K ORCID: 0000-0002-9244-4519, Merzi, S and Franca, L Parsons (2020) First Demonstration of the Use of LG-SiPMs for Optical Readout of a TPC. JOURNAL OF INSTRUMENTATION, 15 (12). P12017-.

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Official URL: http://dx.doi.org/10.1088/1748-0221/15/12/P12017

Abstract

This paper describes a new method for optical readout of Time Projection Chambers (TPCs), based on the Linearly Graded Silicon Photomultiplier (LG-SiPM). This is a single photon-sensitive detector with excellent timing and 2D position resolution developed at Fondazione Bruno Kessler, Trento (FBK). The LG-SiPM produces time-varying voltage signals that are used to reconstruct the 3D position and energy of ionisation tracks generated inside the TPC. The TPC used in this work contained room-temperature CF$_4$ gas at a pressure of 100 mbar, with two THGEMs to produce secondary scintillation light. A collimated $^{241}$Am source (Q$_\alpha$ = 5.486 MeV) was used to produce the ionisation tracks. The successful reconstruction of these tracks is demonstrated, and the consistency of the methodology characterised through varying the geometry of the tracks within the TPC. Energy reconstruction and deposition studies are also described, demonstrating the feasibility of the LG-SiPM as a potential option for optical TPC readout.

Item Type:	Article
Additional Information:	Various changes from previous version based on pre-publication review
Uncontrolled Keywords:	Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc), Noble liquid detectors (scintillation, ionization, double-phase), Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTS, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc), Time projection Chambers (TPC)
Depositing User:	Symplectic Admin
Date Deposited:	18 Feb 2021 15:22
Last Modified:	18 Jan 2023 22:59
DOI:	10.1088/1748-0221/15/12/P12017
Open Access URL:	https://arxiv.org/pdf/2009.05086.pdf
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3115822