Indirect drive experiments utilizing multiple beam cones in cylindrical hohlraums on OMEGA
- Los Alamos National Laboratory, Los Alamos, New Mexico87545 (United States)
- Lawrence Livermore National Laboratory, Livermore, California94550 (United States)
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York14627 (United States)
Current plans for time-dependent control of flux asymmetry in the National Ignition Facility [J. A. Paisner, J. D. Boyes, S. A. Kumpan, and M. Sorem, {open_quotes}The National Ignition Facility Project,{close_quotes} ICF Quart. {bold 5}, 110 (1995)] hohlraums rely on multiple beam cones with different laser power temporal profiles in each cone. Experiments with multiple beam cones have begun on the Omega laser facility [T. R. Boehly {ital et al.}, Opt. Commun. {bold 133}, 495 (1997)] at the University of Rochester. In addition to allowing symmetry experiments similar to those performed on Nova [A. Hauer {ital et al.}, Rev. Sci. Instrum. {bold 66}, 672 (1995)], the Omega facility allows multiple beam cones to be moved independently to confirm our ability to model the resulting implosion image shapes. Results indicate that hohlraum symmetry behaves similarly with multiple rings of beams as with a single ring, but with the weighted beam spot position used to parametrize the beam pointing.
- OSTI ID:
- 627791
- Report Number(s):
- CONF-971103--
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 5; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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