SiPM gain stabilization studies for adaptive power supply

0469923 - FZÚ 2017 RIV CA eng C - Konferenční příspěvek (zahraniční konf.)
Eigen, G. - Træet, A. - Zalieckas, J. - Cvach, Jaroslav - Kvasnička, Jiří - Polák, Ivo
SiPM gain stabilization studies for adaptive power supply.
Proceedings of the International Workshop on Future Linear Colliders. LCWS 2015. Vancouver: Stanford Linear Accelerator Center (SLAC), 2016 - (Brau, J.), s. 1-14
[International Workshop on Future Linear Colliders 2015. LCWS 2015. Whistler (CA), 02.11.2015-06.11.2015]
Grant CEP: GA MŠMT LG14033
Institucionální podpora: RVO:68378271
Klíčová slova: cathode ray oscilloscopes * crosstalk * high energy physics * linear accelerators
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií

We present herein gain stabilization studies of SiPMs using a climate chamber at CERN. We present results for four detectors not tested before, three from Hamamatsu and one from KETEK. Two of the Hamamatsu SiPMs are novel sensors with trenches that reduce cross talk. We use an improved readout system with a digital oscilloscope controlled with a dedicated LabView program. We improved and automized the analysis to deal with large datasets. We have measured the gain-versus-bias-voltage dependence at fixed temperature and gain-versus-temperature dependence at fixed bias voltage to determine the bias voltage dependence on temperature V(T) for stable gain. We show that the gain remains stable to better than ±0.5% in the 20−30∘C temperature range if the bias voltage is properly adjusted with temperature.

Trvalý link: http://hdl.handle.net/11104/0267685