Nuclear Engineering and Technology (Dec 2018)

A scintillation detector configuration for pulse shape analysis

  • Phan Van Chuan,
  • Nguyen Duc Hoa,
  • Nguyen Xuan Hai,
  • Nguyen Ngoc Anh,
  • Nguyen Nhi Dien,
  • Pham Dinh Khang

Journal volume & issue
Vol. 50, no. 8
pp. 1426 – 1432

Abstract

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This paper presents a neutron detector configuration using EJ-301 scintillation liquid, a R9420 photo-multiplier and a homemade preamplifier. The detector qualities which include the energy linearity, efficiency response and neutron/gamma discrimination are guaranteed for neutron detection in the energy range from 0 to 3000 keVee. Regarding the neutron/gamma discrimination capability, four pulse shape discrimination (PSD) methods which are the threshold crossing time (TCT), pulse gradient analysis (PGA), charge comparison (CC) and correlation pattern recognition (CPR), were evaluated and discussed; among of these, the CPR method provides the best neutron/gamma discrimination. Keywords: Neutron scintillation detector, Pulse shape discrimination, Neutron/gamma discrimination