Gain stabilization of SiPMs

0441478 - FZÚ 2015 JP eng C - Konferenční příspěvek (zahraniční konf.)
Cvach, Jaroslav - Eigen, G. - Kvasnička, Jiří - Polák, Ivo - Van Der Kraiij, E. - Zalieskas, J.
Gain stabilization of SiPMs.
Proceedings of the International Workshp on Future Linear Colliders (LCWS13). Tokyo: The University of Tokyo, 2014, s. 1-10.
[International Workshop on Future Linear Colliders LCWS13. Tokyo (JP), 11.11.2013-15.11.2013]
Grant CEP: GA MŠMT LG14033
Institucionální podpora: RVO:68378271
Klíčová slova: SiPM * calorimeter * gain stabilization * power supply
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
http://inspirehep.net/record/1262156/

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 a 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 di erent manufacturers and determine the dV/dT dependence. Next, we demonstrate the performance of the gain stability with the bias voltage regulator test board on four SiPMs.
Trvalý link: http://hdl.handle.net/11104/0244465