Plasma and Fusion Research

Volume 13, 2406004 (2018)

Regular Articles

Development of Neutron Resonance Transmission Analysis as a Non-Destructive Assay Technique for Nuclear Nonproliferation

Harufumi TSUCHIYA, Fumito KITATANI, Makoto MAEDA, Yosuke TOH and Masatoshi KURETA

: Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4 Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan

(Received 8 June 2017 / Accepted 22 October 2017 / Published 9 February 2018)

Abstract

Currently, there is much demand for a non-destructive assay technique to quantify special nuclear materials of ²³⁵U and Pu isotopes in a field of nuclear nonproliferation. For this purpose, a compact NRTA system is under development. The performance of a proposed compact NRTA system was investigated by calculating a neutron transmission spectrum for a spent nuclear fuel. In this paper, we mainly evaluated how a transmission spectrum was affected by neutron pulse width and flight path length of the system and discuss the appropriate values from a viewpoint of measurement of special nuclear materials.

Keywords

special nuclear material, neutron resonance transmission analysis

DOI: 10.1585/pfr.13.2406004

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