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Title: Proton radiography of dynamic electric and magnetic fields in laser-produced high-energy-density plasmas

Abstract

Time-gated, monoenergetic-proton radiography provides unique measurements of the electric (E) and magnetic (B) fields produced in laser-foil interactions and during the implosion of inertial-confinement-fusion capsules. These experiments resulted in the first observations of several new and important features: (1) observations of the generation, decay dynamics, and instabilities of megagauss B fields in laser-driven planar plastic foils, (2) the observation of radial E fields inside an imploding capsule, which are initially directed inward, reverse direction during deceleration, and are likely related to the evolution of the electron pressure gradient, and (3) the observation of many radial filaments with complex electromagnetic field striations in the expanding coronal plasmas surrounding the capsule. The physics behind and implications of such observed fields are discussed.

Authors:
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Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE
OSTI Identifier:
950790
Report Number(s):
DOE/NA-28302-880
Journal ID: ISSN 1070-664X; PHPAEN; 2008-126; 1857
DOE Contract Number:  
FC52-08NA28302
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 16; Journal Issue: 5; Conference: 50th Annual Meeting of the APS DIvision of Plasma Physics, Dallas, TX, 17-21 November 2008; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Li, C. K., Séguin, F. H., Frenje, J. A., Manuel, M., Casey, D., Sinenian, N., Petrasso, R. D., Amendt, P. A., Landen, O. L., Rygg, J. R., Town, R. P. J., Betti, R., Delettrez, J., Knauer, J. P., Marshall, F., Meyerhofer, D. D., Sangster, T. C., Shvarts, D., Smalyuk, V. A., Soures, J. M., Back, C. A., Kilkenny, J. D., and Nikroo, A. Proton radiography of dynamic electric and magnetic fields in laser-produced high-energy-density plasmas. United States: N. p., 2009. Web. doi:10.1063/1.3096781.
Li, C. K., Séguin, F. H., Frenje, J. A., Manuel, M., Casey, D., Sinenian, N., Petrasso, R. D., Amendt, P. A., Landen, O. L., Rygg, J. R., Town, R. P. J., Betti, R., Delettrez, J., Knauer, J. P., Marshall, F., Meyerhofer, D. D., Sangster, T. C., Shvarts, D., Smalyuk, V. A., Soures, J. M., Back, C. A., Kilkenny, J. D., & Nikroo, A. Proton radiography of dynamic electric and magnetic fields in laser-produced high-energy-density plasmas. United States. doi:10.1063/1.3096781.
Li, C. K., Séguin, F. H., Frenje, J. A., Manuel, M., Casey, D., Sinenian, N., Petrasso, R. D., Amendt, P. A., Landen, O. L., Rygg, J. R., Town, R. P. J., Betti, R., Delettrez, J., Knauer, J. P., Marshall, F., Meyerhofer, D. D., Sangster, T. C., Shvarts, D., Smalyuk, V. A., Soures, J. M., Back, C. A., Kilkenny, J. D., and Nikroo, A. Thu . "Proton radiography of dynamic electric and magnetic fields in laser-produced high-energy-density plasmas". United States. doi:10.1063/1.3096781.
@article{osti_950790,
title = {Proton radiography of dynamic electric and magnetic fields in laser-produced high-energy-density plasmas},
author = {Li, C. K. and Séguin, F. H. and Frenje, J. A. and Manuel, M. and Casey, D. and Sinenian, N. and Petrasso, R. D. and Amendt, P. A. and Landen, O. L. and Rygg, J. R. and Town, R. P. J. and Betti, R. and Delettrez, J. and Knauer, J. P. and Marshall, F. and Meyerhofer, D. D. and Sangster, T. C. and Shvarts, D. and Smalyuk, V. A. and Soures, J. M. and Back, C. A. and Kilkenny, J. D. and Nikroo, A.},
abstractNote = {Time-gated, monoenergetic-proton radiography provides unique measurements of the electric (E) and magnetic (B) fields produced in laser-foil interactions and during the implosion of inertial-confinement-fusion capsules. These experiments resulted in the first observations of several new and important features: (1) observations of the generation, decay dynamics, and instabilities of megagauss B fields in laser-driven planar plastic foils, (2) the observation of radial E fields inside an imploding capsule, which are initially directed inward, reverse direction during deceleration, and are likely related to the evolution of the electron pressure gradient, and (3) the observation of many radial filaments with complex electromagnetic field striations in the expanding coronal plasmas surrounding the capsule. The physics behind and implications of such observed fields are discussed.},
doi = {10.1063/1.3096781},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 16,
place = {United States},
year = {2009},
month = {1}
}