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Proceedings Paper

Optomechanical design of a prompt gamma reaction history diagnostic
Author(s): Morris I. Kaufman; Robert M. Malone; Brent C. Frogget; Thomas W. Tunnell; Brian Cox; Daniel K. Frayer; Zaheer Ali; Hans Herrmann; Wolfgang Stoeffl
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Paper Abstract

The National Ignition Facility and the Omega Laser Facility both have a need for measuring prompt gamma radiation as part of a nuclear diagnostic program. A new gamma-detection diagnostic using off-axis-parabolic mirrors has been built. Some new techniques were used in the design, construction, and tolerancing of this gamma ray diagnostic. Because of the wavelength requirement (250 to 700 nm), the optical element surface finishes were a key design consideration. The optical enclosure had to satisfy pressure safety concerns and shielding against electromagnetic interference induced by gammas and neutrons. Structural finite element analysis was needed to meet rigorous optical and safety requirements. The optomechanical design is presented. Alignment issues are also discussed.

Paper Details

Date Published: 10 September 2009
PDF: 9 pages
Proc. SPIE 7424, Advances in Optomechanics, 74240M (10 September 2009); doi: 10.1117/12.825117
Show Author Affiliations
Morris I. Kaufman, National Security Technologies, LLC (United States)
Robert M. Malone, National Security Technologies, LLC (United States)
Brent C. Frogget, National Security Technologies, LLC (United States)
Thomas W. Tunnell, National Security Technologies, LLC (United States)
Brian Cox, National Security Technologies, LLC (United States)
Daniel K. Frayer, National Security Technologies, LLC (United States)
Zaheer Ali, National Security Technologies, LLC (United States)
Hans Herrmann, Los Alamos National Lab. (United States)
Wolfgang Stoeffl, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 7424:
Advances in Optomechanics
Alson E. Hatheway, Editor(s)

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