PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Indirect, CRI)
Design and Test of SiPM Readout Circuit
F. Zhu*, K. Li, M. Yang, S. Zhang and L. Chen
Full text: pdf
Supplementary files:
Pre-published on: July 25, 2023
Published on:
Silicon photomultiplier (SiPM) have several advantages such as high photon detection efficiency,
wide spectral response range, high gain at low bias voltage and compact structure. In addition,
SiPM is not damaged by high night sky background (NSB) level, which means that SiPM is a good
choice for the atmospheric Cherenkov experiment such as LHAASO-WFCTA and the Cherenkov
Telescope Array (CTA) . However, the quenching resistor and capacitor inside SiPM will lead to
a longer recovery when a photon casuses avalanche inside SiPM, and then the pusle generated
always has a much longer fall time than PMT. This work proposes a passive shaping circuit based
on pole-zero cancellation circuit to realize the narrow pulse readout for SiPM without increasing
power supply and the output pulse width has been reduced to under than 50 ns with the type of
HAMAMATSU-S14466 and the size of 15 mm ×15 mm in the lab, when SiPM is illuminated by
the 10 ns pulsed light.
DOI: https://doi.org/10.22323/1.444.0489
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