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Evaluation of dose level in a laser-driven ion accelerator using PHITS code

PHITSコードを用いたレーザー駆動イオン加速装置の放射線量評価

榊 泰直; 福田 祐仁; 西内 満美子; 神野 智史; 金崎 真聡; 余語 覚文; 近藤 公伯; 西藤 文博; 深見 智代; 上野 正幸; 仁井田 浩二*

Sakaki, Hironao; Fukuda, Yuji; Nishiuchi, Mamiko; Jinno, Satoshi; Kanasaki, Masato; Yogo, Akifumi; Kondo, Kiminori; Saito, Fumihiro; Fukami, Tomoyo; Ueno, Masayuki; Niita, Koji*

新規開発中のレーザー駆動型粒子線加速器は、加速イオンのエネルギーが上がるにつれて、その遮蔽能力の評価が重要になってくる。そこで、われわれはベンチマークとしてPHITSコードの有用性を実験結果と比較した。その結果、実測値と計算値がほぼ一致することが確認され、PHITSコードがベンチマークになり得ることがわかった。

The concept of a compact ion particle accelerator has become attractive in view of recent progress in laser-driven ions acceleration. In the development of many applications of laser-accelerated ions, it is necessary for securing the radiation safety to calculate the dose evaluation. The dose was measured with the radio-photoluminescent (RPL) glass dosimeter on the test beamline of at laser-driven accelerator. The Monte Carlo code, PHITS (Particle and Heavy Ion Transport code system) simulation is shown to be reasonably predictive at the test beamline for measured with the RPL glass dosimeter. We compare of the measured dose level on the laser-driven accelerator with the result of PHITS code in this report.

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