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Title: Modeling magnetic confinement of laser-generated plasma in cylindrical geometry leading to disk-shaped structures

Abstract

Radiation-magnetohydrodynamic simulations were able to reproduce features of the plasma structures observed in recent experiments1, where a laser was used to ablate plasma in a 3 MG magnetic field. The laser ablates the plasma, and localized structures are formed due to the inhibition of heat flow by the magnetic field. The large magnetic pressures cause the plasma to pinch. In an azimuthal fi eld, a disc-shaped plasma is generated. According to simulations, the disc has electron densities that are underdense to the laser, ranging from 1018 to 1019 cm-3, and electron temperatures in the 300 to 1000 eV range during its evolution, similar to experimental data.

Authors:
 [1];  [1];  [1];  [1];  [2]
+ Show Author Affiliations
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  2. Univ. of Nevada, Reno, NV (United States)
Publication Date:
Research Org.:
Univ. of Nevada, Reno, NV (United States); Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1602870
Alternate Identifier(s):
OSTI ID: 1600846; OSTI ID: 1602259
Report Number(s):
2019-326; 1551
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
NA0003856; SC0016500
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 27; Journal Issue: 2; 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

Leal, L. S., Maximov, A. V., Betti, R., Sefkow, A. B., and Ivanov, V. V. Modeling magnetic confinement of laser-generated plasma in cylindrical geometry leading to disk-shaped structures. United States: N. p., 2020. Web. https://doi.org/10.1063/1.5139888.
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Leal, L. S., Maximov, A. V., Betti, R., Sefkow, A. B., & Ivanov, V. V. Modeling magnetic confinement of laser-generated plasma in cylindrical geometry leading to disk-shaped structures. United States. https://doi.org/10.1063/1.5139888
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Leal, L. S., Maximov, A. V., Betti, R., Sefkow, A. B., and Ivanov, V. V. Thu . "Modeling magnetic confinement of laser-generated plasma in cylindrical geometry leading to disk-shaped structures". United States. https://doi.org/10.1063/1.5139888. https://www.osti.gov/servlets/purl/1602870.
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@article{osti_1602870,
title = {Modeling magnetic confinement of laser-generated plasma in cylindrical geometry leading to disk-shaped structures},
author = {Leal, L. S. and Maximov, A. V. and Betti, R. and Sefkow, A. B. and Ivanov, V. V.},
abstractNote = {Radiation-magnetohydrodynamic simulations were able to reproduce features of the plasma structures observed in recent experiments1, where a laser was used to ablate plasma in a 3 MG magnetic field. The laser ablates the plasma, and localized structures are formed due to the inhibition of heat flow by the magnetic field. The large magnetic pressures cause the plasma to pinch. In an azimuthal fi eld, a disc-shaped plasma is generated. According to simulations, the disc has electron densities that are underdense to the laser, ranging from 1018 to 1019 cm-3, and electron temperatures in the 300 to 1000 eV range during its evolution, similar to experimental data.},
doi = {10.1063/1.5139888},
journal = {Physics of Plasmas},
number = 2,
volume = 27,
place = {United States},
year = {2020},
month = {2}
}
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