CERN Accelerating science

Preprint
Report number	arXiv:1403.8104 ; AIDA-PUB-2015-026
Title	Gain Stabilization of SiPMs
Author(s)	Cvach, Jaroslav (Prague, Inst. Phys.) ; Eigen, Gerald (Bergen U.) ; Kvasnicka, Jiri (Prague, Inst. Phys.) ; Polak, Ivo (Prague, Inst. Phys.) ; van der Kraiij, Erik (Bergen U.) ; Zalieckas, Justas (Bergen U.)
Publication	2014
Imprint	31 Mar 2014
Number of pages	11
Note	Comments: 11 pages, 8 figures, presented by G. Eigen at International Workshop on Future Linear Colliders, LCWS13, Tokyo, Japan, 11--15 November 2013
Presented at	International Workshop on Future Linear Colliders, Tokyo, Japan, 11 - 15 Nov 2013
Subject category	Detectors and Experimental Techniques ; 9: Advanced infrastructures for detector R&D ; 9.5:Highly Granular Calorimetry
Abstract	The gain of SiPMs depends both on bias voltage and on temperature. For stable operations, both need to be kept constant. In an ILC calorimeter with millions of channels, this is a challenging task. It is, therefore, desirable to compensate for temperature variations by automatically readjusting the bias voltage. We have designed a bias voltage regulator board to achieve this task. We anticipate an uncertainty on the gain stability at the level of $< 1\%$. First, we present measurements of the gain dependence on temperature and bias voltage for several SiPMs from three different manufacturers and determine their dV/dT dependence. Next, we demonstrate the performance of the gain stability with the bias voltage regulator test board on four SiPMs.
Other source	Inspire