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

Leal, L. S.; Maximov, A. V.; Betti, R.; Sefkow, A. B.; Ivanov, V. V.

doi:10.1063/1.5139888

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

Journal Article · Thu Feb 20 00:00:00 EST 2020 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5139888· OSTI ID:1602870

Leal, L. S. ^[1]; Maximov, A. V. ^[1]; Betti, R. ^[1]; Sefkow, A. B. ^[1]; Ivanov, V. V. ^[2]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Univ. of Nevada, Reno, NV (United States)

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.

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Research Organization:: Univ. of Nevada, Reno, NV (United States); Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003856; SC0016500

OSTI ID:: 1602870

Alternate ID(s):: OSTI ID: 1600846; OSTI ID: 1602259

Report Number(s):: 2019-326; 1551; TRN: US2104051

Journal Information:: Physics of Plasmas, Vol. 27, Issue 2; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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