[其它]95 2D MHD COMPUTER MODELING OF DENSE PLASMA FOCUS ACCELERATORS*

2D MHD COMPUTER MODELING OF DENSE PLASMA FOCUS ACCELERATORS* nsu RG  
A. Esaulov, V. Makhin, B. S. Bauer, R. Siemon, V. Sotnikov, I. Paraschiv, R. Presura, U+VyH4"  
B. L. Freeman1, E. C. Hagen2, L. Ziegler2, I. Lindemuth3, P. Sheehey3 Lo}zT-F  
Nevada Terawatt Facility, University of Nevada Reno, 5625 Fox Avenue, Reno, NV 89506 USA ](z*t+">  
1)Texas A&M University, TAMUS-3133, College Station, TX 77843-3133 USA n^/)T3mz{  
2)Bechtel Nevada, P.O. Box 98521,Las Vegas, NV 89193-8521 USA 3/8<dc  
3)LANL, P.O. Box 1663, Los Alamos, NM 87545 USA :71St'  
Abstract1 HaQox.v%  
Dense Plasma Focus (DPF) discharge is a very promising ]i8t  
mechanism to achieve high neutron production yield I\|.WrMNi  
(about 1011–1012 per pulse) from the D-T reactions. Focus ~zQxfl/  
is conjectured to be a finite 2D Z-pinch formation near the fj[Kbo 7!h  
end of the coaxial plasma accelerator, typically having the ghW  
density above the level of 1019/cm3 and temperature of a Z5[g[Q  
few keV during 100 to 150 ns. Interest to DPF appeared SxL/]jWR7  
since the pioneer experiments of Filippov and the first 'v5q/l  
theoretical reviews of Dyachenko and Imshennik and B\+uRiD8w  
Mather. During the last decades theoretical investigation A1B%<$|pz  
of DPF lagged behind the experiments, giving scant explanation U"L-1]L  
of the experimental results. At the same time jH37{S-  
modeling and diagnostic capabilities have been dramatically {X-a6OQj  
improved. This presentation shows that the computer rf]x5%ij  
simulation by the code MHRDR (Magneto Hydro [$Jsel<T=  
Radiative Dynamic Research) can help meet the goals and 2FR5RG oD  
challenges of the LANL – Bechtel Nevada Dense Plasma >txeo17Ba\  
Focus Accelerator project. Theoretical estimations, made $rPQ%2eF4  
in this report, represent the bounds between the parameters X5=I{eY}  
of source generator, geometry of the electrodes and A&X XL~yH  
feeding circuit and the initial density of the background ^t,haO4  
gas in the form of the simple scaling laws. ~\ v"xV  
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