High-Intensity Neutron Generation via Laser-Driven Photonuclear Reaction

The generation of high-peak-intensity neutrons through a photonuclear reaction was demonstrated using the Laser for Fast Ignition Experiments (LFEX) at Osaka University. Up to 109 neutrons/shot were generated from a 1 mm sized gold target. Using Monte Carlo simulations, the neutron spectrum from keV...

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Bibliographic Details
Published in:Plasma and Fusion Research 2015/01/30, Vol.10, pp.2404003-2404003
Main Authors: ARIKAWA, Yasunobu, UTSUGI, Masaru, ALESSIO, Morace, NAGAI, Takahiro, ABE, Yuki, KOJIMA, Sadaoki, SAKATA, Shohei, INOUE, Hiroaki, FUJIOKA, Shinsuke, ZHANG, Zhe, CHEN, Hui, PARK, Jaebum, WILLIAMS, Jackson, MORITA, Taichi, SAKAWA, Yoichi, NAKATA, Yoshiki, KAWANAKA, Junji, JITSUNO, Takahisa, SARUKURA, Nobuhiko, MIYANAGA, Noriaki, NAKAI, Mitsuo, SHIRAGA, Hiroyuki, NISHIMURA, Hiroaki, AZECHI, Hiroshi
Format: Article
Language:English
Subjects:
Computer simulation
Gold
laser neutron generation
Monte Carlo simulation
photonuclear reaction
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Summary:The generation of high-peak-intensity neutrons through a photonuclear reaction was demonstrated using the Laser for Fast Ignition Experiments (LFEX) at Osaka University. Up to 109 neutrons/shot were generated from a 1 mm sized gold target. Using Monte Carlo simulations, the neutron spectrum from keV to MeV was found to be independent of the γ-ray spectrum. The typical peak neutron intensity of 1021 neutrons /cm2/s at the target surface was estimated, and it should be a useful tool for nuclear synthesis experiments.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.10.2404003