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APS » Journals » Phys. Rev. Lett. » Volume 92 » Issue 20
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Phys. Rev. Lett. 92, 205006 (2004) [4 pages]

Effect of Nonlocal Transport on Heat-Wave Propagation

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G. Gregori, S. H. Glenzer, J. Knight, C. Niemann, D. Price, D. H. Froula, M. J. Edwards, and R. P. J. Town
Lawrence Livermore National Laboratory, University of California, P.O. Box 808, California 94551, USA

A. Brantov and W. Rozmus
Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2J1

V. Yu. Bychenkov
P. N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow 117924, Russia

Received 27 August 2003; published 20 May 2004

We present the first direct measurements of spatially and temporally resolved temperature and density profiles produced by nonlocal transport in a laser plasma. Absolutely calibrated measurements have been performed by Rayleigh scattering and by resolving the ion-acoustic wave spectra across the plasma volume with Thomson scattering. We find that the electron temperature and density profiles disagree with flux-limited models, but are consistent with nonlocal transport modeling.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.205006
DOI:
10.1103/PhysRevLett.92.205006
PACS:
52.50.Jm, 52.35.Fp
 
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