Observation of fast current redistribution in an imploding plasma column
Autor: | Stollberg, Christine, Kroupp, Eyal, Mikitchuk, Dimitry, Sharma, Prashant, Bernshtam, Vladimir, Cvejic, Marko, Doron, Ramy, Stambulchik, Evgeny, Maron, Yitzhak, Fruchtman, Amnon, Ochs, Ian E., Fisch, Nathaniel J., Shumlak, Uri |
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Rok vydání: | 2021 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Spectroscopic measurements of the magnetic field evolution in a Z-pinch throughout stagnation and with particularly high spatial resolution reveal a sudden current redistribution from the stagnating plasma (SP) to a low density plasma (LDP) at larger radii, while the SP continues to implode. Based on the plasma parameters it is shown that the current is transferred to an increasing-conductance LDP outside the stagnation, a process likely to be induced by the increasing impedance of the SP. Since an LDP often exists around imploding plasmas and in various pulsed-power systems, such a fast current redistribution may dramatically affect the behavior and achievable parameters in these systems. Comment: 6 pages, 5 figures, resubmitted to PRL |
Databáze: | arXiv |
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