Gain stabilization of SiPMs with an adaptive power supply

0519152 - FZÚ 2020 RIV GB eng J - Journal Article
Eigen, G. - Cvach, Jaroslav - Kvasnička, Jiří - Polák, Ivo - Traeet, A. - Zalieckas, J.
Gain stabilization of SiPMs with an adaptive power supply.
Journal of Instrumentation. Roč. 14, č. 5 (2019), s. 1-34, č. článku P05006. ISSN 1748-0221. E-ISSN 1748-0221
Institutional support: RVO:68378271
Keywords : calorimeters * photon detectors for UV, * visible and IR photons (solid-state)
OECD category: Particles and field physics
Impact factor: 1.454, year: 2019
Method of publishing: Limited access
https://doi.org/10.1088/1748-0221/14/05/p05006

The gain of silicon photomultipliers (SiPMs) increases with bias voltage and decreases with temperature. To operate SiPMs at stable gain, the bias voltage can be readjusted to compensate for temperature changes. We have tested this concept with 30 SiPMs from three manufacturers (Hamamatsu, KETEK and CPTA) operating in a climate chamber at CERN by varying temperatures between 1o C and 48o C. We built an adaptive power supply that uses a linear dependence of the bias voltage on temperature. We stabilized four SiPMs simultaneously with only one compensation parameter for the readjustment of the bias voltage of four SiPMs. For all tested Hamamatsu and CPTA SiPMs we achieved our goal of limiting gain changes to less than ± 0.5% in the 20–30oC temperature range.
Permanent Link: http://hdl.handle.net/11104/0304177