Design and performance of a high-speed and low-noise preamplifier for SiPM

Nov 18, 2023
10 pages
Published in:
  • Nucl.Sci.Tech. 34 (2023) 11, 169
  • Published: Nov 18, 2023

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Abstract: (Springer)
Considering the R&D for upgrading the KL0K_\text {L}^0 and μ\mu detectors in the Belle II experiment using a scintillator and silicon photomultiplier (SiPM), we designed a compact high-speed and low-noise preamplifier. The preamplifier demonstrated a good gain stability, bandwidth of 426MHz426\,\hbox {MHz}, baseline noise level of σ0.6 mV\sigma \approx 0.6~{\text {m}\text {V}}, dynamic range of up to 170 mV170~{\text {m}\text {V}} of the input signal amplitude, good time resolution of 20 ps20~{\text {p}\text {s}}, and it can be comprehensively applied to SiPMs. Adopting pole-zero-cancelation in the preamplifier reduces both the rise and fall times of the SiPM signal, which can significantly improve the time resolution and reduce the pile-up when using a large SiPM or an array of SiPMs. Various combinations of the preamplifier and several types of SiPMs demonstrated time resolutions better than 50 ps50~{\text {p}\text {s}} for most cases; when the number of detected photons was larger than 60, a time resolution of approximately 25 ps25~{\text {p}\text {s}} was achieved.
  • Silicon photomultiplier
  • High-speed amplifier
  • Low noise
  • High time resolution
  • photomultiplier: silicon
  • yield: stability
  • noise: low
  • time resolution
  • BELLE
  • amplifier