Gain compensation technique by bias correction in arrays of Silicon Photomultipliers using fully differential fast shaper
PBN-AR
Instytucja
Wydział Informatyki, Elektroniki i Telekomunikacji (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Nuclear Instruments & Methods in Physics Research. Section A, Accelerators Spectrometers, Detectors and Associated Equipment
ISSN
0168-9002
EISSN
1872-9576
Wydawca
Elsevier Science BV
Rok publikacji
2016
Numer zeszytu
Strony od-do
85--86
Numer tomu
824
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.1
Słowa kluczowe
EN
SiPM
Fully differential
MPPC
array
bias correction
gain compensation
Streszczenia
Język
EN
Treść
Proposed algorithm compensates the gain by changing the bias voltage of Silicon Photomultipliers (SiPM). The signal from SiPM is amplified in fully differential preamplifier then is formed in time by the fully differential fast shaper. The compensation method was tested with four channels common cathode multi-pixel photon counter from Hamamatsu. The measurement system requires only one high voltage power supply. The polarization voltage is adjusted individually in each channel indirectly by tuning the output common mode voltage (VOCM) of fully differential amplifier. The changes of VOCM affect the input voltage through the feedback network. Actual gain of the SiPM is calculated by measuring the mean amplitude of the signal resulting from detection of single photoelectron. The VOCM is adjusted by DAC so as to reach the desired value of gain by each channel individually. The advantage of the algorithm is the possibility to set the bias of each SiPM in the array independently so they all could operate in very similar conditions (have similar gain and dark count rate). The algorithm can compensate the variations of gain of SiPM by using thermally generated pulses. There is no need to use additional current to voltage conversion which could introduce extra noises. © 2015 Elsevier B.V. All rights reserved.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:097675
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