Demonstration of fast multiplicity counting of 252Cf using plastic scintillators and silicon photomultipliers

E. O. Cohen, Y. Waschitz, Y. Ifergan, A. Roy, D. Vartsky, Y. Yehuda-Zada, I. Israelashvili, A. Beck, L. Arazi

Research output: Contribution to journalArticlepeer-review

Abstract

We present a first prototype for a multiplicity counter of fast neutrons and γ rays, based on plastic scintillators coupled to silicon photomultiplier arrays, where the SiPMs are read out individually by the TOFPET2 ASIC providing time-stamps and charge information. We demonstrate the capabilities of our counter by measuring the Singles-, Doubles- and Triples-event rates of neutrons and γ rays (without pulse shape discrimination), for a 252Cf source with a nominal activity of 4.9 μCi, and comparing them with a GEANT4 simulation of the process.

Keywords

  • FNMC
  • Scintillators
  • SiPMs
  • TOFPET2

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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