1. Characterization of 7Li(p,n)7Be neutron yields from laser produced ion beams for fast neutron radiography.
- Author
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Lancaster, K.L., Karsch, S., Habara, H., Beg, F.N., Clark, E.L., Freeman, R., Key, M.H., King, J.A., Kodama, R., Krushelnick, K., Ledingham, K.W.D., McKenna, P., Murphy, C.D., Norreys, P.A., Stephens, R., Stöeckl, C., Toyama, Y., Wei, M.S., and Zepf, M.
- Subjects
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NEUTRONS , *ION bombardment , *NEUTRON radiography , *THERMAL neutrons , *INDUSTRIAL radiography , *PHYSICS - Abstract
Investigations of 7Li(p,n)7Be reactions using Cu and CH primary and LiF secondary targets were performed using the VULCAN laser [C.N. Danson et al., J. Mod. Opt. 45, 1653 (1997)] with intensities up to 3×1019 W cm-2. The neutron yield was measured using CR-39 plastic track detector and the yield was up to 3×108 sr-1 for CH primary targets and up to 2×108 sr-1 for Cu primary targets. The angular distribution of neutrons was measured at various angles and revealed a relatively anisotropic neutron distribution over 180° that was greater than the error of measurement. It may be possible to exploit such reactions on high repetition, table-top lasers for neutron radiography. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]
- Published
- 2004
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