Session XO6: Ultraintense Lasers and Particle Generation
9:30 AM–12:18 PM, Friday, November 12, 2010
Room: Columbus GH
Chair: Ronnie Shepherd, Lawrence Livermore National Laboratory
Abstract ID: BAPS.2010.DPP.XO6.5
Abstract: XO6.00005 : High Contrast Laser Interactions with Thin Targets: Juxtaposition of Material Composition, Thickness and Neutron Yield
10:18 AM–10:30 AM
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Abstract 
Authors:
Kirk A. Flippo
(Los Alamos National Laboratory)
S.A. Gaillard
(Los Alamos National Laboratory)
D.T. Offermann
(Los Alamos National Laboratory)
J. Ren
(Los Alamos National Laboratory)
G. Wurden
(Los Alamos National Laboratory)
X. Yang
(University of Illinios Urbana-Champaign)
G. Miley
(University of Illinios Urbana-Champaign)
B.B. Gall
(University of Missouri, Columbia)
S. Kovaleski
(University of Missouri, Columbia)
T. Burris-Mog
(ForschungsZentrum Dresden-Rossendorf)
S. Kraft
(ForschungsZentrum Dresden-Rossendorf)
J. Metzkes
(ForschungsZentrum Dresden-Rossendorf)
J. Rassuchine
(ForschungsZentrum Dresden-Rossendorf)
K. Zeil
(ForschungsZentrum Dresden-Rossendorf)
C. Plechaty
(University of Nevada, Reno)
T.E. Lockard
(University of Nevada, Reno)
Recent experiments on the 200TW Trident short-pulse laser (80J, 500fs) at high contrast ($>$10$^{-10})$ have shown an unexpected trend for proton beam energy and yield on target material with targets below 1 micron in thickness, which is completely opposite of that of thicker targets above 1 micron. Previous lower contrast experiments showing similar material dependence for thicker targets is also presented. In addition neutron production has a dependence on the target thickness, composition, and possibly shape. The highest neutron yield was found to lie near the target normal rear and front directions of the targets, with the majority of neutrons originating from an unintended but rather efficient neutron converter.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.DPP.XO6.5