Laser Energy Scaling Law for the Yield of Neutrons Generated by Intense Femtosecond Laser-Cluster Interactions

• SAKABE Shuji

  Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-001, Japan Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan

• HASHIDA Masaki

  Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-001, Japan Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan

• TOKITA Shigeki

  Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-001, Japan Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan

• OTANI Kazuto

  Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-001, Japan Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan

抄録

In order to discuss the feasibility of compact neutron sources for scientific, medical and industrial applications, the yield of laser-produced neutrons is scaled by the laser energy. The laser energy scaling law of the neutron yield is derived from the laser intensity scaling law for the energy and the number of laser produced ions. High-energy ions are generated by Coulomb explosion of clusters through intense femtosecond laser-cluster interactions. The reactions of D(D,n)He generating high yield even by relatively low deuterium energy and Li(p,n)Be generating relatively low energy neutrons are discussed. The neutron yield of D(D,n)He determines the potential for using compact neutron sources with the aid of modern laser technology. In addition, p(Li,n)Be shows much higher yield than Li(p,n)Be with the assumption of Coulomb explosion of a cluster with a diameter of 500 nm.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 4 041-041, 2009

  一般社団法人 プラズマ・核融合学会

キーワード

• intense femtosecond laser
• cluster
• Coulomb explosion
• neutron

詳細情報

• CRID: 1390001205254245248
• NII論文ID: 130000138103
• DOI: 10.1585/pfr.4.041
• ISSN: 18806821
• Web Site: http://www.jstage.jst.go.jp/article/pfr/4/0/4_0_041/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
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• 抄録ライセンスフラグ: 使用不可