Influence of L-shell dynamics on K-shell yields for imploding krypton Z-pinch plasmas
- 1 May 1995
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 2 (5), 1766-1774
- https://doi.org/10.1063/1.871325
Abstract
The radiative performance of a Z‐pinch krypton puff gas heated by a proposed multiterawatt generator is investigated with the aid of a one‐dimensional (1‐D) non‐Local Thermodynamic Equilibrium (LTE) radiation hydrodynamic model self‐consistently coupled to a circuit model. For stable loads configured either as cylindrical annular shells or uniform fills, predictions are made for the K‐ and L‐shell soft x‐ray emission as a function of the L‐shell level structure. The results of numerical simulations show that both the thin annular shell and uniform fill are prolific K‐ and L‐shell radiators. It is also predicted that the L‐shell level structure profoundly affects the optimum K‐shell soft x‐ray yield, as well as the choices for load mass corresponding to optimum emission.Keywords
This publication has 10 references indexed in Scilit:
- Phenomenological modeling of turbulence in Z-pinch implosionsPhysics of Plasmas, 1994
- Role of the implosion kinetic energy in determining the kilovolt x-ray emission from aluminum-wire-array implosionsPhysical Review A, 1991
- Imploding neon puff-gas plasmas. IIPhysics of Fluids B: Plasma Physics, 1990
- The dense radiating deuterium Z-pinch plasmaJournal of Applied Physics, 1989
- Large-scale-length nonuniformities in gas puff implosionsJournal of Applied Physics, 1986
- Effects of radiation on spectra, gradients, and preheat in laser-produced plasmasPhysical Review A, 1985
- Efficient x-ray production from ultrafast gas-puff Z pinchesJournal of Applied Physics, 1985
- Radiation energetics of a laser-produced plasmaPhysical Review A, 1983
- Direct solution of the equation of transfer using frequency- and angle-averaged photon-escape probabilities for spherical and cylindrical geometriesJournal of Quantitative Spectroscopy and Radiative Transfer, 1981
- Contraction of Z pinches actuated by radiation lossesPhysics of Fluids, 1976