Neutrongamma discrimination based on pulse shape discrimination in a Ce:LiCaAlF6 scintillator

Atsushi Yamazaki; Kenichi Watanabe; Akira Uritani; Tetsuo Iguchi; Noriaki Kawaguchi; Takayuki Yanagida; Yutaka Fujimoto; Yuui Yokota; Kei Kamada; Kentaro Fukuda; Toshihisa Suyama; Akira Yoshikawa

doi:10.1016/j.nima.2011.02.064

Neutrongamma discrimination based on pulse shape discrimination in a Ce:LiCaAlF₆ scintillator

Atsushi Yamazaki, Kenichi Watanabe, Akira Uritani, Tetsuo Iguchi, Noriaki Kawaguchi, Takayuki Yanagida, Yutaka Fujimoto, Yuui Yokota, Kei Kamada, Kentaro Fukuda, Toshihisa Suyama, Akira Yoshikawa

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

We demonstrate neutrongamma discrimination based on a pulse shape discrimination method in a Ce:LiCAF scintillator. We have tried neutrongamma discrimination using a difference in the pulse shape or the decay time of the scintillation light pulse. The decay time is converted into the rise time through an integrating circuit. A ²⁵²Cf enclosed in a polyethylene container is used as the source of thermal neutrons and prompt gamma-rays. Obvious separation of neutron and gamma-ray events is achieved using the information of the rise time of the scintillation light pulse. In the separated neutron spectrum, the gamma-ray events are effectively suppressed with little loss of neutron events. The pulse shape discrimination is confirmed to be useful to detect neutrons with the Ce:LiCAF scintillator under an intense high-energy gamma-ray condition.

Original language	English
Pages (from-to)	435-438
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	652
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.02.064
Publication status	Published - 2011 Oct 1

Keywords

Neutron detection
Neutron scintillator
Neutron/gamma discrimination
Pulse shape discrimination

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nima.2011.02.064

Cite this

Yamazaki, A., Watanabe, K., Uritani, A., Iguchi, T., Kawaguchi, N., Yanagida, T., Fujimoto, Y., Yokota, Y., Kamada, K., Fukuda, K., Suyama, T., & Yoshikawa, A. (2011). Neutrongamma discrimination based on pulse shape discrimination in a Ce:LiCaAlF₆ scintillator. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 652(1), 435-438. https://doi.org/10.1016/j.nima.2011.02.064

Neutrongamma discrimination based on pulse shape discrimination in a Ce:LiCaAlF₆ scintillator. / Yamazaki, Atsushi; Watanabe, Kenichi; Uritani, Akira et al.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 652, No. 1, 01.10.2011, p. 435-438.

Research output: Contribution to journal › Article › peer-review

Yamazaki, A, Watanabe, K, Uritani, A, Iguchi, T, Kawaguchi, N, Yanagida, T, Fujimoto, Y , Yokota, Y , Kamada, K, Fukuda, K, Suyama, T & Yoshikawa, A 2011, 'Neutrongamma discrimination based on pulse shape discrimination in a Ce:LiCaAlF₆ scintillator', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 652, no. 1, pp. 435-438. https://doi.org/10.1016/j.nima.2011.02.064

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AB - We demonstrate neutrongamma discrimination based on a pulse shape discrimination method in a Ce:LiCAF scintillator. We have tried neutrongamma discrimination using a difference in the pulse shape or the decay time of the scintillation light pulse. The decay time is converted into the rise time through an integrating circuit. A 252Cf enclosed in a polyethylene container is used as the source of thermal neutrons and prompt gamma-rays. Obvious separation of neutron and gamma-ray events is achieved using the information of the rise time of the scintillation light pulse. In the separated neutron spectrum, the gamma-ray events are effectively suppressed with little loss of neutron events. The pulse shape discrimination is confirmed to be useful to detect neutrons with the Ce:LiCAF scintillator under an intense high-energy gamma-ray condition.

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