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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 |
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| Cite this article: |
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NING Cheng, DING Ning, LIU Quan et al 2006 Chin. Phys. Lett. 23 1857-1860 |
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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.
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| Keywords:
52.65.Kj
52.30.Cv
52.59.Qv
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Published: 01 July 2006
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| PACS: |
52.65.Kj
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(Magnetohydrodynamic and fluid equation)
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52.30.Cv
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(Magnetohydrodynamics (including electron magnetohydrodynamics))
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52.59.Qv
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