Evaluation of two-stage system for neutron measurement aiming at increase in count rate at Japan Atomic Energy Agency-Fusion Neutronics Source

K. Shinohara, Keizo Ishii, K. Ochiai, M. Baba, A. Sukegawa, M. Sasao, Sumio Kitajima

Research output: Contribution to journalArticle

Abstract

In order to increase the count rate capability of a neutron detection system as a whole, we propose a multi-stage neutron detection system. Experiments to test the effectiveness of this concept were carried out on Fusion Neutronics Source. Comparing four configurations of alignment, it was found that the influence of an anterior stage on a posterior stage was negligible for the pulse height distribution. The two-stage system using 25 mm thickness scintillator was about 1.65 times the count rate capability of a single detector system for d-D neutrons and was about 1.8 times the count rate capability for d-T neutrons. The results suggested that the concept of a multi-stage detection system will work in practice.

Original languageEnglish
Article number11E823
JournalReview of Scientific Instruments
Volume85
Issue number11
DOIs
Publication statusPublished - 2014 Jan 1

ASJC Scopus subject areas

  • Instrumentation

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