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中性子ラジオグラフィによる混相流の可視化計測

Visualization and measurement of multiphase flow by neutron radiography

呉田 昌俊

Kureta, Masatoshi

中性子ラジオグラフィは中性子を利用して物質内部を可視化計測する技術であり、X線ラジオグラフィ(レントゲン)と相補的な特長を持つ。本レビュー論文においては、その計測原理および適用事例、例えばエンジン内の潤滑油オイルの可視化、大強度陽子加速器施設J-PARC(共用中性子イメージング専用施設)を利用した最先端技術などについて、計測の次元毎に技術全体を網羅し整理した形で紹介する。

A neutron radiography is technology which carries out visualization and measurement of the inside of a substance using neutrons. This technology has the complementary feature comparing with X-ray radiography (Roentgen technique). In this review paper, the measurement principle, some application examples such as visualization of oil in the working car engine, and about the leading-edge technology using high-intensity proton beam accelerator facility J-PARC (common neutron imaging facility), etc. It was introduced in the form where the whole neutron radiography technology for every dimension of measurement were covered.

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