Operation stability, pinching efficiency and speed factor in 3-joules miniature plasma pinch generator, for different electrodes geometry
Regarding the importance of the stability in a miniature pinch plasma generator in repetitive and strong plasma pinch, the stable operation of a 3J miniature plasma focus device in two single-shot and repetitive discharge modes (at 0.5Hz and 5Hz discharge frequencies) and the factors in creation of...
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| Format: | Article |
| Language: | fas |
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Nuclear Science and Technology Research Institute
2019-11-01
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| Series: | مجله علوم و فنون هسته‌ای |
| Subjects: | |
| Online Access: | https://jonsat.nstri.ir/article_1022_0e1987286e6117b7098926e9a70f505b.pdf |
| _version_ | 1797835156504969216 |
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| author | M Habibi H Jafari |
| author_facet | M Habibi H Jafari |
| author_sort | M Habibi |
| collection | DOAJ |
| description | Regarding the importance of the stability in a miniature pinch plasma generator in repetitive and strong plasma pinch, the stable operation of a 3J miniature plasma focus device in two single-shot and repetitive discharge modes (at 0.5Hz and 5Hz discharge frequencies) and the factors in creation of switch misfire was demonstrated. Then, the device efficiency and strength of the plasma pinch for four different coaxial electrode configurations were studied, upon scanning argon gas pressure ranged from 0.6 to 1.5 mbar via the study of the charging voltage variation from 8.3 to 9.3 kV. It was observed that the strength and efficient pinching is appropriately produced for the tapered anode configuration over an expanded operating pressure ranged from 0.6 to 1.5 mbar. After the calculation of the speed factor and pinch sensitivity for the optimum electrodes geometry, it was shown that the best plasma compression at the pinch phase was associated with 0.88±0.8 mbar argon gas pressure and 8.3-8.5 kV charging voltage, respectively. From the viewpoint of the stability assessment of the device, it was observed that the stable operation of the device was for the charging voltage of 8.3 to 8.7 kV in the operating pressure of 0.6 to 1.1 mbar. |
| first_indexed | 2024-04-09T14:48:41Z |
| format | Article |
| id | doaj.art-485a843e26684825aa31c0e7a983a81e |
| institution | Directory Open Access Journal |
| issn | 1735-1871 2676-5861 |
| language | fas |
| last_indexed | 2024-04-09T14:48:41Z |
| publishDate | 2019-11-01 |
| publisher | Nuclear Science and Technology Research Institute |
| record_format | Article |
| series | مجله علوم و فنون هسته‌ای |
| spelling | doaj.art-485a843e26684825aa31c0e7a983a81e2023-05-02T10:15:56ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هسته‌ای1735-18712676-58612019-11-01403173010.24200/nst.2019.10221022Operation stability, pinching efficiency and speed factor in 3-joules miniature plasma pinch generator, for different electrodes geometryM Habibi0H Jafari1دانشکده‌ی فیزیک و مهندسی انرژی، دانشگاه صنعتی امیرکبیر، صندوق پستی: 158754413، تهران ـ ایراندانشکده‌ی فیزیک و مهندسی انرژی، دانشگاه صنعتی امیرکبیر، صندوق پستی: 158754413، تهران ـ ایرانRegarding the importance of the stability in a miniature pinch plasma generator in repetitive and strong plasma pinch, the stable operation of a 3J miniature plasma focus device in two single-shot and repetitive discharge modes (at 0.5Hz and 5Hz discharge frequencies) and the factors in creation of switch misfire was demonstrated. Then, the device efficiency and strength of the plasma pinch for four different coaxial electrode configurations were studied, upon scanning argon gas pressure ranged from 0.6 to 1.5 mbar via the study of the charging voltage variation from 8.3 to 9.3 kV. It was observed that the strength and efficient pinching is appropriately produced for the tapered anode configuration over an expanded operating pressure ranged from 0.6 to 1.5 mbar. After the calculation of the speed factor and pinch sensitivity for the optimum electrodes geometry, it was shown that the best plasma compression at the pinch phase was associated with 0.88±0.8 mbar argon gas pressure and 8.3-8.5 kV charging voltage, respectively. From the viewpoint of the stability assessment of the device, it was observed that the stable operation of the device was for the charging voltage of 8.3 to 8.7 kV in the operating pressure of 0.6 to 1.1 mbar.https://jonsat.nstri.ir/article_1022_0e1987286e6117b7098926e9a70f505b.pdfminiature plasma generatorpinching efficiencyspeed factor |
| spellingShingle | M Habibi H Jafari Operation stability, pinching efficiency and speed factor in 3-joules miniature plasma pinch generator, for different electrodes geometry مجله علوم و فنون هسته‌ای miniature plasma generator pinching efficiency speed factor |
| title | Operation stability, pinching efficiency and speed factor in 3-joules
miniature plasma pinch generator, for different electrodes geometry |
| title_full | Operation stability, pinching efficiency and speed factor in 3-joules
miniature plasma pinch generator, for different electrodes geometry |
| title_fullStr | Operation stability, pinching efficiency and speed factor in 3-joules
miniature plasma pinch generator, for different electrodes geometry |
| title_full_unstemmed | Operation stability, pinching efficiency and speed factor in 3-joules
miniature plasma pinch generator, for different electrodes geometry |
| title_short | Operation stability, pinching efficiency and speed factor in 3-joules
miniature plasma pinch generator, for different electrodes geometry |
| title_sort | operation stability pinching efficiency and speed factor in 3 joules miniature plasma pinch generator for different electrodes geometry |
| topic | miniature plasma generator pinching efficiency speed factor |
| url | https://jonsat.nstri.ir/article_1022_0e1987286e6117b7098926e9a70f505b.pdf |
| work_keys_str_mv | AT mhabibi operationstabilitypinchingefficiencyandspeedfactorin3joulesminiatureplasmapinchgeneratorfordifferentelectrodesgeometry AT hjafari operationstabilitypinchingefficiencyandspeedfactorin3joulesminiatureplasmapinchgeneratorfordifferentelectrodesgeometry |