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Characterization of 7Li(p, n) 7Be neutron yields from laser produced ion beams for fast neutron radiography

K. L. Lancaster*, S. Karsch, H. Habara, F. N. Beg, E. L. Clark, R. Freeman, M. H. Key, J. A. King, R. Kodama, K. Krushelnick, K. W.D. Ledingham, P. McKenna, C. D. Murphy, P. A. Norreys, R. Stephens, C. Stöeckl, Y. Toyama, M. S. Wei, M. Zepf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

The VULCAN laser was used for investigating 7Li(p,n) 7Be reactions with the help of Cu and CH primary and LiF secondary targets. CR-39 plastic track detector measured the neutron yield which was 3×10 19 Wcm -2 for CH primary targets and up to 2×10 8 sr -1 for Cu primary targets. At various angles, the angular distribution of neutrons was measured that indicated a relatively anisotropic distribution of neutrons over 180°. The reactions were found to be fficient for neutron radiography on high repetition, table-top lasers.

Original languageEnglish
Pages (from-to)3404-3408
Number of pages5
JournalPhysics of Plasmas
Volume11
Issue number7
DOIs
Publication statusPublished - 1 Jul 2004

Keywords

  • tracking devices
  • lasers
  • targets
  • laser produced plasmas
  • beam plasma interactions
  • Beryllium
  • Lithium
  • electromagnetic wave attenuation
  • error analysis
  • imaging systems
  • laser beam effects
  • proton beams

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