Title :
2-D snowplow modeling of gas puff Z-pinches
Author :
Ingermanson, R. ; Waisman, E. ; Coleman, P. ; Song, Y.
Author_Institution :
Maxwell Phys. Int., San Diego, CA, USA
Abstract :
Summary form only given. The 2-D snowplow model roughly approximates part of the physics of the implosion phase. It can be used to estimate two observables: the onset time of K-shell radiation and the inductive feedback in the circuit current waveform. Here, we use the 2-D snowplow model to investigate the sensitivity of these two observables to variations in the initial state of the implosion phase. Specifically, we examine two real-world configurations: the MPI "shell-on-shell" and "nozzle-in-a-can" systems. The gas distributions for these systems have been measured approximately, and we have also modeled these systems using 2-D gas dynamics models. We examine the effect on our observables of perturbing these estimates for the initial gas distribution.
Keywords :
Z pinch; fusion reactor ignition; plasma simulation; 2-D gas dynamics models; 2-D snowplow modeling; K-shell radiation; circuit current waveform; gas distributions; gas puff Z-pinches; implosion phase; inductive feedback; initial gas distribution; initial state; nozzle-in-a-can system; onset time; sensitivity; shell-on-shell systems; Electrons; Feedback circuits; Gases; Kinetic theory; Laboratories; Physics; Plasma accelerators; Plasma density; Plasma simulation; Spatial resolution;
Conference_Titel :
Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-5982-8
DOI :
10.1109/PLASMA.2000.855033