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:
-
- 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. https://doi.org/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. https://doi.org/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 = {Thu Nov 19 00:00:00 EST 2015},
month = {Thu Nov 19 00:00:00 EST 2015}
}
Web of Science
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Works referencing / citing this record:
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