PRS scoping study. 2: ZPIMP predictions for radiation yields on a JUPITER-class generator

Details PRS scoping study. 2: ZPIMP predictions for radiation yields on a JUPITER-class generator PRS scoping study. 2: ZPIMP predictions for radiation yields on a JUPITER-class generator

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994prs..reptr....g&link_type=abstract

Unknown

Physics

Plasma Physics

Magnetohydrodynamics, Plasma Physics, Plasma Radiation, Radiation Sources, Computerized Simulation, Implosions, Radiation Hardening, Zeta Pinch

Scientific paper

A limited radiation-magnetohydrodynamics simulation code, ZPIMP, is used to predict radiation yields in various energy bins on a JUPITER-class machine. Elements of the simulation code are reviewed and calculations are made to compare the code with experimental K-shell yields from aluminum z-pinches on the SATURN generator. For a chosen viscosity parameter the simulated yields agree remarkably with the data. The same code is applied on an early version of the linear inductive voltage adder, but the projected krypton yields arc disappointing. By increasing the compression through a lower viscosity parameter, the subsequent yields are significantly improved for weak implosions, showing that such a case is highly sensitive to the details of the dynamics. The capabilities of an approximately 60 MA JUPITER-class generator are surveyed with the ZPIMP code and the results for argon, krypton, and xenon are compared against the anticipated required source yields in five energy bins ranging from 0 to 60 keV. In the lowest bins (0-1 and 1-5 keV) JUPITER is well suited to reach the required yields, but in the highest bins (15-30 and 30-60 keV) the present calculations indicate that improvements in load design, understanding, and control are necessary to meet the requirements. Limitations of the ZPIMP calculations and directions for improving the PRS estimates for JUPITER are derived from the present work.

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