Laser-plasma interactions in long-scale-length plasmas under direct-drive National Ignition Facility conditions
dc.contributor.author | Regan, S. P. | en_US |
dc.contributor.author | Bradley, D. K. | en_US |
dc.contributor.author | Chirokikh, A. V. | en_US |
dc.contributor.author | Craxton, R. S. | en_US |
dc.contributor.author | Meyerhofer, D. D. | en_US |
dc.contributor.author | Seka, W. | en_US |
dc.contributor.author | Short, R. W. | en_US |
dc.contributor.author | Simon, A. | en_US |
dc.contributor.author | Town, R. P. J. | en_US |
dc.contributor.author | Yaakobi, B. | en_US |
dc.contributor.author | Carroll, J. J. | en_US |
dc.contributor.author | Drake, R. Paul | en_US |
dc.date.accessioned | 2010-05-06T21:37:27Z | |
dc.date.available | 2010-05-06T21:37:27Z | |
dc.date.issued | 1999-05 | en_US |
dc.identifier.citation | Regan, S. P.; Bradley, D. K.; Chirokikh, A. V.; Craxton, R. S.; Meyerhofer, D. D.; Seka, W.; Short, R. W.; Simon, A.; Town, R. P. J.; Yaakobi, B.; Carroll, J. J.; Drake, R. P. (1999). "Laser-plasma interactions in long-scale-length plasmas under direct-drive National Ignition Facility conditions." Physics of Plasmas 6(5): 2072-2080. <http://hdl.handle.net/2027.42/70094> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/70094 | |
dc.description.abstract | Laser-plasma interaction experiments have been carried out on the OMEGA laser system [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] under plasma conditions representative of the peak of a 1.5 MJ direct-drive laser pulse proposed for the National Ignition Facility (NIF). Plasmas have been formed by exploding 18–20 μm thick CH foils and by irradiating solid CH targets from one side, using up to 20 kJ of laser energy with phase plates installed on all beams. These plasmas and the NIF plasmas are predicted to have electron temperatures of 4 keV and density scale lengths close to 0.75 mm at the peak of the laser pulse. The electron temperature and density of the exploding-foil plasmas have been diagnosed using time-resolved x-ray spectroscopy and stimulated Raman scattering, respectively, and are consistent with predictions of the two-dimensional Eulerian hydrodynamics code SAGE [R. S. Craxton and R. L. McCrory, J. Appl. Phys. 56, 108 (1984)]. When the solid-target or exploding-foil plasmas were irradiated with an f/6f/6 interaction beam at 1.5×1015 W/cm2,1.5×1015W/cm2, well above the NIF f/8f/8 cluster intensity of ∼ 2×1014 W/cm2,∼2×1014W/cm2, stimulated Brillouin backscattering (SBS) was found to be completely inhibited. A conservative upper limit of direct-backscattered SRS was found to be ∼5% from the solid targets. SRS and SBS are thus unlikely to have a significant impact on target performance at the peak of the NIF direct-drive laser pulse. © 1999 American Institute of Physics. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 754475 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Laser-plasma interactions in long-scale-length plasmas under direct-drive National Ignition Facility conditions | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Atmospheric, Oceanic, and Space Sciences, University of Michigan, 2455 Hayword, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationother | Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/70094/2/PHPAEN-6-5-2072-1.pdf | |
dc.identifier.doi | 10.1063/1.873716 | en_US |
dc.identifier.source | Physics of Plasmas | en_US |
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dc.owningcollname | Physics, Department of |
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