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Title: Generation of disc-like plasma from laser-matter interaction in the presence of a strong external magnetic field

Abstract

Dynamics of laser produced plasma in a strong magnetic field was studied here using a 1 MA pulsed power generator coupled to an intense, high-energy laser. A 2–2.5 MG magnetic field was generated on the surface of a rod load 0.8–1.2 mm in diameter. A sub-nanosecond laser pulse with intensity of 3 × 10 15 W cm -2 was focused on the rod load surface. Side-on laser diagnostics showed the generation of two collimated jets 1–3 mm long on the front and rear sides of the load. End-on laser diagnostics reveal that the laser produced plasma in the MG magnetic field takes the form of a thin disc as the plasma propagates along the magnetic field lines. The disc-like plasma expands radially across the magnetic field with a velocity of 250 km s -1. An electron temperature of 400 eV was measured in the laser-produced plasma on the rod load.

Authors:
 [1];  [2];  [3];  [1]; ORCiD logo [4];  [4]
  1. Univ. of Nevada, Reno, NV (United States). Dept. of Physics
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
  3. Department of Physics and Astronomy, University of Rochester
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1364547
Report Number(s):
LA-UR-16-28331
Journal ID: ISSN 0741-3335
Grant/Contract Number:
AC52-06NA25396; NA0002075; SC0016500
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 59; Journal Issue: 8; Journal ID: ISSN 0741-3335
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser matter interaction; magnetic fields; plasma disc

Citation Formats

Ivanov, V. V., Maximov, A. V., Betti, R., Wiewior, P. P., Hakel, Peter, and Sherrill, Manolo Edgar. Generation of disc-like plasma from laser-matter interaction in the presence of a strong external magnetic field. United States: N. p., 2017. Web. doi:10.1088/1361-6587/aa7358.
Ivanov, V. V., Maximov, A. V., Betti, R., Wiewior, P. P., Hakel, Peter, & Sherrill, Manolo Edgar. Generation of disc-like plasma from laser-matter interaction in the presence of a strong external magnetic field. United States. doi:10.1088/1361-6587/aa7358.
Ivanov, V. V., Maximov, A. V., Betti, R., Wiewior, P. P., Hakel, Peter, and Sherrill, Manolo Edgar. Tue . "Generation of disc-like plasma from laser-matter interaction in the presence of a strong external magnetic field". United States. doi:10.1088/1361-6587/aa7358.
@article{osti_1364547,
title = {Generation of disc-like plasma from laser-matter interaction in the presence of a strong external magnetic field},
author = {Ivanov, V. V. and Maximov, A. V. and Betti, R. and Wiewior, P. P. and Hakel, Peter and Sherrill, Manolo Edgar},
abstractNote = {Dynamics of laser produced plasma in a strong magnetic field was studied here using a 1 MA pulsed power generator coupled to an intense, high-energy laser. A 2–2.5 MG magnetic field was generated on the surface of a rod load 0.8–1.2 mm in diameter. A sub-nanosecond laser pulse with intensity of 3 × 1015 W cm-2 was focused on the rod load surface. Side-on laser diagnostics showed the generation of two collimated jets 1–3 mm long on the front and rear sides of the load. End-on laser diagnostics reveal that the laser produced plasma in the MG magnetic field takes the form of a thin disc as the plasma propagates along the magnetic field lines. The disc-like plasma expands radially across the magnetic field with a velocity of 250 km s-1. An electron temperature of 400 eV was measured in the laser-produced plasma on the rod load.},
doi = {10.1088/1361-6587/aa7358},
journal = {Plasma Physics and Controlled Fusion},
number = 8,
volume = 59,
place = {United States},
year = {Tue May 16 00:00:00 EDT 2017},
month = {Tue May 16 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on May 16, 2018
Publisher's Version of Record

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