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JAEA development programs of advanced technologies of measurement and detection of nuclear material for safeguards and security

保障措置・核セキュリティのための原子力機構核測定・核検知先端技術開発プログラム

瀬谷 道夫; 若林 修二; 千崎 雅生; 大窪 道章; 直井 洋介

Seya, Michio; Wakabayashi, Shuji; Senzaki, Masao; Okubo, Michiaki; Naoi, Yosuke

2010年12月に設立された原子力機構核不拡散・核セキュリティ総合支援センターは、文部科学省補助事業により、人材育成支援,基盤整備支援,国際協力に加えて、最先端の核測定・核検知技術開発プログラムを実施する。この技術開発プログラムでは、レーザーコンプトン$$gamma$$線利用核共鳴蛍光(NRF)非破壊測定技術開発、$$^{3}$$He代替固体シンチレータ中性子検出技術開発を行う。また、米国ロスアラモス国立研究所が開発する予定の中性子測定技術を駆使した使用済燃料中Puの非破壊測定装置の実証試験を行う(JAEA/DOE共同研究協定の締結後)。本論文はそれらについて報告する。

The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of JAEA established in December, 2010 has development programs of cutting-edge technologies for measurement and detection of nuclear materials, in addition to its functions of "assistance for human resources development and capacity buildings", "institutional infrastructure development and technical support" and "international cooperation and collaboration" under the sponsorship of MEXT. ISCN started development programs of "NRF (Nuclear Resonance Fluorescence) NDA technology using laser Compton scattering (LCS) $$gamma$$-rays", "Alternative to $$^{3}$$He neutron detection technology using inorganic solid scintillator". ISCN is also going to conduct a demonstration test of a spent fuel Pu-NDA system using very sophisticated neutron measurement technologies, that are to be developed by LANL after conclusion of a JAEA/US.DOE cooperation agreement. This paper presents the development programs of ISCN.

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