Simulation of Z-Pinch Processes of Nested Tungsten Wire-Array on Angara-5-1 Facility
NING Cheng1,2, DING Ning1,2, LIU Quan1, YANG Zhen-Hua1, FAN Wen-Bin1, ZHANG Yang1
1Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088
2Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088
Simulation of Z-Pinch Processes of Nested Tungsten Wire-Array on Angara-5-1 Facility
NING Cheng1,2; DING Ning1,2;LIU Quan1;YANG Zhen-Hua1;FAN Wen-Bin1;ZHANG Yang1
1Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088
2Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088
Abstract： Based on the hydrodynamic shell-on-shell collision model, the Z-pinch processes of nested tungsten wire-array in Sino-Russian joint experiments on Angara-5-1 facility are simulated by means of our one-dimensional three-temperature radiation magneto-hydrodynamic code. The results show the evolutions of x-ray radiation burst, implosion trajectories of interfaces, current transfer in inner and outer wire-array plasmas, and the temporal and spatial changes of magnetic field and current density in the process. About 20% of the total driven current is transferred into the inner wire-array plasma by convection and diffusion of magnetic field when the two shells are pinched closest. Compared to the measured x-ray power, the simulated full width at half maximum and time at the strongest radiation agree approximately with the measured values. It is also demonstrated in our simulation that the radiation of nested wire-array Z-pinch is enhanced. The effects of fluctuations of driven current on yields of x-ray are also investigated.
NING Cheng; DING Ning;LIU Quan;YANG Zhen-Hua;FAN Wen-Bin;ZHANG Yang. Simulation of Z-Pinch Processes of Nested Tungsten Wire-Array on Angara-5-1 Facility[J]. 中国物理快报, 2006, 23(7): 1857-1860.
NING Cheng, DING Ning, LIU Quan, YANG Zhen-Hua, FAN Wen-Bin, ZHANG Yang. Simulation of Z-Pinch Processes of Nested Tungsten Wire-Array on Angara-5-1 Facility. Chin. Phys. Lett., 2006, 23(7): 1857-1860.
2006, Vol. 23 
