Two dynamics modes in planar wire array Z pinch implosion |
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Authors: | Sheng Liang Wang Liang-Ping Wu Jian Li Yang Peng Bo-Dong Zhang Mei |
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Affiliation: | Northwest Institute of Nuclear Technology, Xi'an 710024, China |
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Abstract: | Two dynamics modes, named short ablation mode and long ablation mode, are observed in implosion experiments of planar wire array Z pinch on 'QiangGuang-I' facility utilizing an optical streak camera. The long ablation mode has a lagged trajectory compared with the short ablation mode. For shot 10035 in a short ablation mode, the initial time of K-shell radiation is consistent with the interaction time for ablation plasma arriving at the centre of wire array, while for shot 10038 in long ablation mode, the initial time of K-shell radiation is about 10 ns earlier. In the two modes, the partial ablation plasma could traverse the wire array plane and then collide in the centre to form a dense plasma column with a diameter of 2.2 mm for shot 10035 and 1.5 mm for shot 10038. |
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Keywords: | ablation mode imploding dynamics planar wire array Z pinch |
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