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High-Intensity Neutron Generation via Laser-Driven Photonuclear Reaction
Plasma and Fusion Research · 2015 · Vol. 10(0) · pp. 2404003–2404003
Yasunobu Arikawa✉(Institute for Laser Technology)Masaru Utsugi(Osaka University)Morace Alessio(Osaka University)Takahiro Nagai(Osaka University)Y. Abe(Institute for Laser Technology)Sadaoki Kojima(Osaka University)Shohei Sakata(Institute for Laser Technology)Hiroaki Inoue(Osaka University)Shinsuke Fujioka(Osaka University)Zhe Zhang(Osaka University)Hui Chen(Lawrence Livermore National Laboratory)Jaebum Park(Lawrence Livermore National Laboratory)Jackson Williams(Lawrence Livermore National Laboratory)T. Morita(Institute for Laser Technology)Yoichi Sakawa(Osaka University)Yoshiki Nakata(Institute for Laser Technology)Junji Kawanaka(Institute for Laser Technology)Takahisa Jitsuno(Institute for Laser Technology)Nobuhiko Sarukura(Institute for Laser Technology)N. Miyanaga(Institute for Laser Technology)M. Nakai(Osaka University)Hiroyuki Shiraga(Institute for Laser Technology)Hiroaki Nishimura(Institute for Laser Technology)H. Azechi(Institute for Laser Technology)
Abstract
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.
Nuclear Physics and ApplicationsLaser-Plasma Interactions and DiagnosticsAdvanced X-ray Imaging TechniquesNeutronPhysicsNuclear physicsIntensity (physics)Monte Carlo methodNeutron sourceOptics
Funding
- Ministry of Education, Culture, Sports, Science and Technology
- Japan Society for the Promotion of Science
- Nuclear Physics
Citations
26
FWCI
2.89
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15
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