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Analytic model of an imploding Z-pinch plasma colliding inelastically with a thin-shelled cylindrical target

Technical Report ·
OSTI ID:6169322
A simple model for the target dynamics of a distributed, uniform density imploding gas puff plasma colliding with a thin, annular, cylindrical shell has been developed. This model is applicable to a pulse-power-driven, photoionization-pumped, recombination x-ray laser. By integrating the equation for momentum conservation it was possible to obtain target closure time, a quantity that may be compared to experiment. In addition, it was possible to find energy available as pump radiation as a function of target parameters. We find that this quantity is maximized when target mass approximately equals the gas mass times the thickness of the gas puff prior to stagnation divided by twice the target radius. We also find that this quantity is a relatively weak function of gas puff shell thickness prior to stagnation, a somewhat stronger function of target mass, and a very strong function of implosion velocity. 7 refs.
Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6169322
Report Number(s):
SAND-87-1748; ON: DE88000051
Country of Publication:
United States
Language:
English