A Study on the effect of photo-neutrons on laser-accelerated ion beam diagnostics

Kanasaki, Masato; Fukuda, Yuji; Sakaki, Hironao; Yogo, Akifumi; Jinno, Satoshi ; Nishiuchi, Mamiko; Hattori, Atsuto*; Matsukawa, Kenya*; Kondo, Kiminori; Oda, Keiji*; Yamauchi, Tomoya*

In laser-driven ion acceleration experiments with cluster-gas targets, a significant amount of high energy electrons are produced. Such fast electrons can produce photo-neutrons via bremsstrahlung processes followed by (,n) reactions. If the CR-39 is exposed to photo-neutrons, it can record proton tracks indirectly as background noises. In the present study, to diminish the effect of photo-neutrons, we have considered the configuration of a beam dump for high energy electrons and a CR-39 detector unit by using Monte Carlo simulations.

Language	:	Japanese
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Meeting title	:	2013年(平成25年)第60回応用物理学会春季学術講演会
Held date	:	2013/03
Location (city)	:	厚木
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	Tキューブレーザー施設
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Registration No. : BB20123353
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