Comparative Analysis of the Rayleigh-Taylor Instability Suppression During Compression of Metallic Gas-Puff Z Pinch at the MIG and GIT-12 Facilities
| Parent link: | Energy Fluxes and Radiation Effects (EFRE-2020 online): proceedings of 7th International Congress, September 14-26, 2020, Tomsk, Russia/ National Research Tomsk Polytechnic University (TPU) ; Institute of Electrical and Electronics Engineers (IEEE) ; ed. N. A. Ratakhin. [P. 228-231].— , 2020 |
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| Other Authors: | , , , , , , |
| Summary: | Title screen We present experiments on implosion of metallic gas-puff Z-pinches. Experiments were performed on the MIG and GIT-12 pulse power generators. The MIG is a multifunctional pulse power generator with current amplitude of 2.5 MA and a current rise time of ~ 100 ns [1]. The GIT-12 is an Arkadiev-Marx pulse power generator. It provides the current of 4.7 MA with the current rise time of 1.7 ȝs in the short-circuit load [2]. Metallic gas-puff was the main element of the load on both generators. Metallic gas-puff Z-pinches were formed using plasma guns where plasma production was initiated by a high current vacuum arc discharge [3]. All of the plasma gun electrodes were made of magnesium or aluminum. To visualize the process of metallic gas-puff Z-pinch implosion, we performed time-gated imaging of the visible pinch radiation. An HSFC-Pro 4-channel, 12-bit intensified charge-coupled device (ICCD) camera was used to take 4 successive images in a single shot. The image analysis had shown that during implosion of the metallic gas-puff Z-pinch, the Rayleigh-Taylor instabilities were suppressed. Final pinch implosion diameter was determined. The optimal (from the point of view of radiation output in magnesium K-shell radiation) formation time of a plasma jet of a vacuum-arc discharge was determined. Режим доступа: по договору с организацией-держателем ресурса |
| Language: | English |
| Published: |
2020
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| Online Access: | https://doi.org/10.1109/EFRE47760.2020.9241964 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663022 |