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Title: Radiation from particles moving in small-scale magnetic fields created in solid-density laser-plasma laboratory experiments

Abstract

Plasmas created by high-intensity lasers are often subject to the formation of kinetic-streaming instabilities, such as the Weibel instability, which lead to the spontaneous generation of high-amplitude, tangled magnetic fields. These fields typically exist on small spatial scales, i.e., “sub-Larmor scales.” Radiation from charged particles moving through small-scale electromagnetic (EM) turbulence has spectral characteristics distinct from both synchrotron and cyclotron radiation, and it carries valuable information on the statistical properties of the EM field structure and evolution. Consequently, this radiation from laser-produced plasmas may offer insight into the underlying electromagnetic turbulence. Here, we investigate the prospects for, and demonstrate the feasibility of, such direct radiative diagnostics for mildly relativistic, solid-density laser plasmas produced in lab experiments.

Authors:
 [1];  [1]
  1. Univ. of Kansas, Lawrence, KS (United States)
Publication Date:
Research Org.:
Univ. of Kansas, Lawrence, KS (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1469651
Alternate Identifier(s):
OSTI ID: 1226663
Grant/Contract Number:  
FG02-07ER54940
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 11; 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

Keenan, Brett D., and Medvedev, Mikhail V. Radiation from particles moving in small-scale magnetic fields created in solid-density laser-plasma laboratory experiments. United States: N. p., 2015. Web. doi:10.1063/1.4935898.
Keenan, Brett D., & Medvedev, Mikhail V. Radiation from particles moving in small-scale magnetic fields created in solid-density laser-plasma laboratory experiments. United States. doi:10.1063/1.4935898.
Keenan, Brett D., and Medvedev, Mikhail V. Thu . "Radiation from particles moving in small-scale magnetic fields created in solid-density laser-plasma laboratory experiments". United States. doi:10.1063/1.4935898. https://www.osti.gov/servlets/purl/1469651.
@article{osti_1469651,
title = {Radiation from particles moving in small-scale magnetic fields created in solid-density laser-plasma laboratory experiments},
author = {Keenan, Brett D. and Medvedev, Mikhail V.},
abstractNote = {Plasmas created by high-intensity lasers are often subject to the formation of kinetic-streaming instabilities, such as the Weibel instability, which lead to the spontaneous generation of high-amplitude, tangled magnetic fields. These fields typically exist on small spatial scales, i.e., “sub-Larmor scales.” Radiation from charged particles moving through small-scale electromagnetic (EM) turbulence has spectral characteristics distinct from both synchrotron and cyclotron radiation, and it carries valuable information on the statistical properties of the EM field structure and evolution. Consequently, this radiation from laser-produced plasmas may offer insight into the underlying electromagnetic turbulence. Here, we investigate the prospects for, and demonstrate the feasibility of, such direct radiative diagnostics for mildly relativistic, solid-density laser plasmas produced in lab experiments.},
doi = {10.1063/1.4935898},
journal = {Physics of Plasmas},
number = 11,
volume = 22,
place = {United States},
year = {2015},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 1 work
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