Two Dimensional Modeling of Double shell Argon Gas Puff Z-Pinch Implosions on Decade Quad
Abstract
Two dimensional radiation magneto-hydrodynamic simulations of double shell argon gas puff Z-pinch implosions on Decade Quad (DQ) are performed. These calculations utilize the Mach2 hydrodynmics code that has been modified to include a tabular collisional radiative equilibrium (TCRE) treatment of radiation transport and ionization dynamics.(J. W. Thornhill, et al., Phys. of Plasmas 8, 3480 (2001).) This treatment contains more realistic physics than the radiation diffusion model, which has traditionally been employed for multidimensional Z-pinch calculations. The calculations are benchmarked to K-shell measurements obtained from previous DQ argon 8-cm diameter double shell nozzle(H. Sze, et al., Phys. of Plasmas 8, 3135 (2001).) experiments. We also model implosions that employ a 12-cm diameter double puff nozzle, which is soon to be fielded on DQ. In particular, the sensitivity of K-shell yield to the ratio of initial mass in the outer nozzle to mass in the inner nozzle is examined.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2002
- Bibcode:
- 2002APS..DPPLP1075T