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Title: Mitigation of hot electrons from laser-plasma instabilities in high-Z, highly ionized plasmas

Authors:
 [1];  [1];  [1];  [1];  [2]; ORCiD logo [2];  [2];  [3];  [3];  [3];  [1]; ORCiD logo [1]
  1. University of Michigan, Ann Arbor, Michigan 48109-2143, USA
  2. Laboratory for Laser Energetics, Rochester, New York 14623, USA
  3. Soreq Research Center, Yavne 81800, Israel
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1348953
Grant/Contract Number:
NA0000850; NA0001840; DEFC52-08NA28616
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 3; Related Information: CHORUS Timestamp: 2018-02-14 20:13:02; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English

Citation Formats

Fein, J. R., Holloway, J. P., Trantham, M. R., Keiter, P. A., Edgell, D. H., Froula, D. H., Haberberger, D., Frank, Y., Fraenkel, M., Raicher, E., Shvarts, D., and Drake, R. P.. Mitigation of hot electrons from laser-plasma instabilities in high-Z, highly ionized plasmas. United States: N. p., 2017. Web. doi:10.1063/1.4978625.
Fein, J. R., Holloway, J. P., Trantham, M. R., Keiter, P. A., Edgell, D. H., Froula, D. H., Haberberger, D., Frank, Y., Fraenkel, M., Raicher, E., Shvarts, D., & Drake, R. P.. Mitigation of hot electrons from laser-plasma instabilities in high-Z, highly ionized plasmas. United States. doi:10.1063/1.4978625.
Fein, J. R., Holloway, J. P., Trantham, M. R., Keiter, P. A., Edgell, D. H., Froula, D. H., Haberberger, D., Frank, Y., Fraenkel, M., Raicher, E., Shvarts, D., and Drake, R. P.. Wed . "Mitigation of hot electrons from laser-plasma instabilities in high-Z, highly ionized plasmas". United States. doi:10.1063/1.4978625.
@article{osti_1348953,
title = {Mitigation of hot electrons from laser-plasma instabilities in high-Z, highly ionized plasmas},
author = {Fein, J. R. and Holloway, J. P. and Trantham, M. R. and Keiter, P. A. and Edgell, D. H. and Froula, D. H. and Haberberger, D. and Frank, Y. and Fraenkel, M. and Raicher, E. and Shvarts, D. and Drake, R. P.},
abstractNote = {},
doi = {10.1063/1.4978625},
journal = {Physics of Plasmas},
number = 3,
volume = 24,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1063/1.4978625

Citation Metrics:
Cited by: 2works
Citation information provided by
Web of Science

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  • We present a benchmark measurement of the electron density profile in the region where the electron density is 10{sup 19 }cm{sup –3} and where the bulk of extreme ultraviolet (EUV) emission occurs from isotropically expanding spherical high-Z gadolinium plasmas. It was found that, due to opacity effects, the observed EUV emission is mostly produced from an underdense region. We have analyzed time-resolved emission spectra with the aid of atomic structure calculations and find the multiple ion charge states around 18+ during the laser pulse irradiation.
  • The charge-state distribution in a well-characterized highly ionized Au plasma was accurately determined using time-resolved x-ray spectroscopy. Simultaneous measurements of the electron temperature and density allow the first direct comparisons with nonlocal thermodynamic equilibrium model predictions for the charge-state distribution of a highly ionized high-Z plasma in a nonradiative environment. The importance of two-electron atomic processes is clearly demonstrated. (c) 2000 The American Physical Society.
  • A space-resolved electron density diagnostic of a holmium laser-produced plasma has been performed using the intensity ratios of Cu I--like 3[ital d][sup 10]4[ital l]-3[ital d][sup 10]4[ital l][prime] lines. The atomic theoretical model of the Cu I--like ion included the 3[ital d][sup 10][ital nl] levels with [ital n]=4,5 and [ital l]=[ital s],[ital p],[ital d],[ital f]. The effect of line absorption at high electron densities is discussed and the atomic data obtained with the HULLAC computer code are compared with previously published data.
  • We have designed and produced hot, millimeter-scale, high-{ital Z} plasmas of interest for National Ignition Facility hohlraum target design. Using a high-{ital Z} gas fill produces electron temperatures in the 3.5{endash}6-keV range, the highest temperatures measured to date for high-density (10{sup 21} e/cm{sup 3}) laser-heated plasmas, and much higher than the 3 keV found for low-{ital Z} (neopentane) fills. These measurements are in good agreement with the target design calculations, and the {ital L}-shell spectroscopic approach used to estimate the electron temperature has certain advantages over traditional {ital K}-shell approaches. {copyright} {ital 1999} {ital The American Physical Society}