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

Journal Article · · Physical Review Letters
 [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)

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); French National Research Agency (ANR); European Union (EU)
Grant/Contract Number:
AC52-07NA27344; ANR-2011-BS04-014; ANR-10-IDEX-03-02; 633053
OSTI ID:
1458623
Report Number(s):
LLNL-JRNL-742150; PRLTAO; 896793; TRN: US1901484
Journal Information:
Physical Review Letters, Vol. 118, Issue 20; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (7)

Guiding of relativistic electron beams in dense matter by laser-driven magnetostatic fields journal January 2018
Time-resolved measurements of fast electron recirculation for relativistically intense femtosecond scale laser-plasma interactions journal March 2018
Enhanced relativistic-electron beam collimation using two consecutive laser pulses journal October 2019
Transport of moderately relativistic electron beam in dense plasma journal June 2019
Collimation of high-current fast electrons in dense plasmas with a tightly focused precursor intense laser pulse journal October 2019
Nonempirical Semi-local Free-Energy Density Functional for Matter Under Extreme Conditions text January 2016
Enhanced relativistic-electron beam collimation using two consecutive laser pulses preprint January 2019

Figures / Tables (3)