Computational Modeling of the Laser-Initiated, Gas-Embedded Z-Pinch

From 1977 to 1981, a high-density, laser- initiated, gas-embedded z-pinch experimental and theoretical program was conducted at the Los Alamos National Laboratory. The experimental measurements and the computations indicated for the usual mode of operation the production experimentally of a hydrogen...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2024-10, Vol.52 (10), p.4782-4785
Main Author: Lindemuth, Irvin R.
Format: Article
Language:English
Subjects:
Computational modeling
Fusion
Gas lasers
Laser modes
magnetohydrodynamics
Mathematical models
plasma
Plasma measurements
Plasma temperature
Plasmas
simulations
z-pinch
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Summary:From 1977 to 1981, a high-density, laser- initiated, gas-embedded z-pinch experimental and theoretical program was conducted at the Los Alamos National Laboratory. The experimental measurements and the computations indicated for the usual mode of operation the production experimentally of a hydrogen plasma characterized by {n} _{e} = 1020/cm3, {T} = 200 eV, and {n} _{e}\tau > 2 \times 10^{13} s/cm3. The computations modeled all aspects of the experiment from {t} = 0: the Marx-bank transmission line energy source, the initiating laser and optical system, the electrical breakdown process, and the dynamic behavior of the pinch column. The computations reproduced the experimental diagnostics reasonably well and demonstrated that traditional interpretations of data based upon the Bennet relation, visible light emission, and x-ray emission gave conflicting results that could only be reconciled through detailed computation.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2024.3360096