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Title: Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon

Abstract

In this study, collimated transport of ultrahigh intensity electron current was observed in cold and in laser-shocked vitreous carbon, in agreement with simulation predictions. The fast electron beams were created by coupling high-intensity and high-contrast laser pulses onto copper-coated cones drilled into the carbon samples. The guiding mechanism—observed only for times before the shock breakout at the inner cone tip—is due to self-generated resistive magnetic fields of ~ 0.5–1 kT arising from the intense currents of fast electrons in vitreous carbon, by virtue of its specific high resistivity over the range of explored background temperatures. The spatial distribution of the electron beams, injected through the samples at different stages of compression, was characterized by side-on imaging of hard x-ray fluorescence.

Authors:
 [1];  [2];  [3];  [4];  [4];  [1];  [1];  [1];  [1];  [5];  [1];  [6];  [1];  [1];  [1];  [2];  [1];  [6];  [7];  [8] more »;  [1];  [1] « less
  1. Univ. of Bordeaux, CNRS, CEA, Talence (France). Intensive Lasers and Applications Center (CELIA)
  2. Osaka Univ. (Japan). Inst. of Laser Engineering
  3. Univ. of Bordeaux, CNRS, CEA, Talence (France). Intensive Lasers and Applications Center (CELIA); Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering
  4. Univ. Paris-Saclay, CNRS, CEA, Gif-sur-Yvette (France). Polytechnic School and Lab. for the Use of Intense Lasers (LULI); Sorbonne Univ., Paris (France)
  5. Univ. of California, San Diego, CA (United States)
  6. Univ. of Alberta, Edmonton, AB (Canada). Dept. of Electrical and Computer Engineering
  7. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  8. Univ. of Nevada, Reno, NV (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); French National Research Agency (ANR); European Union (EU)
OSTI Identifier:
1458623
Report Number(s):
LLNL-JRNL-742150
Journal ID: ISSN 0031-9007; PRLTAO; 896793; TRN: US1901484
Grant/Contract Number:  
AC52-07NA27344; ANR-2011-BS04-014; ANR-10-IDEX-03-02; 633053
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 20; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; fast ignition; fast particle effects in plasmas; target design and fabrication

Citation Formats

Vaisseau, X., Morace, A., Touati, M., Nakatsutsumi, M., Baton, S. D., Hulin, S., Nicolai, Ph., Nuter, R., Batani, D., Beg, F. N., Breil, J., Fedosejevs, R., Feugeas, J. -L., Forestier-Colleoni, P., Fourment, C., Fujioka, S., Giuffrida, L., Kerr, S., McLean, H. S., Sawada, H., Tikhonchuk, V. T., and Santos, J. J. Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.118.205001.
Vaisseau, X., Morace, A., Touati, M., Nakatsutsumi, M., Baton, S. D., Hulin, S., Nicolai, Ph., Nuter, R., Batani, D., Beg, F. N., Breil, J., Fedosejevs, R., Feugeas, J. -L., Forestier-Colleoni, P., Fourment, C., Fujioka, S., Giuffrida, L., Kerr, S., McLean, H. S., Sawada, H., Tikhonchuk, V. T., & Santos, J. J. Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon. United States. doi:10.1103/PhysRevLett.118.205001.
Vaisseau, X., Morace, A., Touati, M., Nakatsutsumi, M., Baton, S. D., Hulin, S., Nicolai, Ph., Nuter, R., Batani, D., Beg, F. N., Breil, J., Fedosejevs, R., Feugeas, J. -L., Forestier-Colleoni, P., Fourment, C., Fujioka, S., Giuffrida, L., Kerr, S., McLean, H. S., Sawada, H., Tikhonchuk, V. T., and Santos, J. J. Fri . "Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon". United States. doi:10.1103/PhysRevLett.118.205001. https://www.osti.gov/servlets/purl/1458623.
@article{osti_1458623,
title = {Collimated Propagation of Fast Electron Beams Accelerated by High-Contrast Laser Pulses in Highly Resistive Shocked Carbon},
author = {Vaisseau, X. and Morace, A. and Touati, M. and Nakatsutsumi, M. and Baton, S. D. and Hulin, S. and Nicolai, Ph. and Nuter, R. and Batani, D. and Beg, F. N. and Breil, J. and Fedosejevs, R. and Feugeas, J. -L. and Forestier-Colleoni, P. and Fourment, C. and Fujioka, S. and Giuffrida, L. and Kerr, S. and McLean, H. S. and Sawada, H. and Tikhonchuk, V. T. and Santos, J. J.},
abstractNote = {In this study, collimated transport of ultrahigh intensity electron current was observed in cold and in laser-shocked vitreous carbon, in agreement with simulation predictions. The fast electron beams were created by coupling high-intensity and high-contrast laser pulses onto copper-coated cones drilled into the carbon samples. The guiding mechanism—observed only for times before the shock breakout at the inner cone tip—is due to self-generated resistive magnetic fields of ~ 0.5–1 kT arising from the intense currents of fast electrons in vitreous carbon, by virtue of its specific high resistivity over the range of explored background temperatures. The spatial distribution of the electron beams, injected through the samples at different stages of compression, was characterized by side-on imaging of hard x-ray fluorescence.},
doi = {10.1103/PhysRevLett.118.205001},
journal = {Physical Review Letters},
number = 20,
volume = 118,
place = {United States},
year = {2017},
month = {5}
}

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Figures / Tables:

FIG. 1 FIG. 1: (color online) a) Experimental setup: geometry of laser irradiation and Cu-K$_\alpha$ sight axis (top view). b) Density (top) and temperature (bottom) maps as a function of the delay between the laser pulses Δt, obtained with 2D radiative-hydrodynamic simulations. The maps’ aspect ratio has been modified for sake ofmore » clarity. c) Experimental side-on images of the Cu-K$_\alpha$ fluorescence, attributable to the time-integrated REB spatial distributions, as a function of Δt. The two images on the left (earlier times) are zoomed over the region of the cone tip and tracer. The image corresponding to Δt = 0ns has been recorded with a MS-type imaging plate, the three others with an Andor X-ray CCD presenting a better contrast and a higher spatial resolution.« less

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