The effect of gradients at stagnation on K-shell x-ray line emission in high-current Ar gas-puff implosions.

Authors :: Jones, B.
Apruzese, J. P.
Harvey-Thompson, A. J.
Ampleford, D. J.
Jennings, C. A.
Hansen, S. B.
Moore, N. W.
Lamppa, D. C.
Johnson, D.
Jones, M. C.
Waisman, E. M.
Coverdale, C. A.
Cuneo, M. E.
Rochau, G. A.
Giuliani, J. L.
Thornhill, J. W.
Ouart, N. D.
Chong, Y. K.
Velikovich, A. L.
Dasgupta, A.
Source :: Physics of Plasmas; 2015, Vol. 22 Issue 2, p1-5, 5p, 2 Charts, 5 Graphs
Publication Year :: 2015
Abstract: Argon gas puffs have produced 330 ° 69% of x-ray radiation above 3 keV photon energy in fast z-pinch implosions, with remarkably reproducible K-shell spectra and power pulses. This reproducibility in x-ray production is particularly significant in light of the variations in instability evolution observed between experiments. Soft x-ray power measurements and K-shell line ratios from a time-resolved spectrum at peak x-ray power suggest that plasma gradients in these high-mass pinches may limit the K-shell radiating mass, K-shell power, and K-shell yield from high-current gas puffs. [ABSTRACT FROM AUTHOR]

Subjects :: STAGNATION point
ARGON
X-ray powder diffraction
PARTICLE beam instabilities
PHOTONS

Full Text Access

Tools