Research on the plasma dynamics in a magnetically self-insulated ion diode with explosive emission potential electrode
| Parent link: | Natural science.— , 2009- Vol. 2, iss. 5.— 2010.— [P. 419-426] |
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| Автор: | |
| Інші автори: | , |
| Резюме: | Title screen The results of an experimental investigation of the plasma dynamics in a magnetically insu- lated ion diode in bipolar-pulse mode are pre-sented. The experiments were done at the pulsed TEMP-4M accelerator by formation of a first negative pulse (100 ns, 150-200 kV) and a second positive pulse (80 ns, 250-300 kV). The voltage-current diode characteristics were used to analyze the plasma behavior in the anode- cathode gap. It is shown that, during the first pulse, a discrete emissive surface is formed on the graphite potential electrode and a plasma forms by explosive-emission, which before the second pulse comes, fills the whole working surface of the electrode and spreads to the anode-cathode gap. An analytical expression is obtained for the total current in the cellular structure approximation. It is shown that the current build-up for a cathode surface with dis- crete emitting centers is described satisfac- torily by a modified Child-Langmuir formula wi- th a form factor decreasing from F = 6 to 1. It is found that, once plasma formation at the gra- phite potential electrode is complete and until the second positive pulse, the plasma speed is constant and equals 1.3 ± 0.2 cm/µs. Режим доступа: по договору с организацией-держателем ресурса |
| Мова: | Англійська |
| Опубліковано: |
2010
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| Предмети: | |
| Онлайн доступ: | http://dx.doi.org/10.4236/ns.2010.25051 |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652571 |
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| 200 | 1 | |a Research on the plasma dynamics in a magnetically self-insulated ion diode with explosive emission potential electrode |f A. I. Pushkarev, Yu. I. Isakova, R. V. Sazonov | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 426 (23 tit.)] | ||
| 330 | |a The results of an experimental investigation of the plasma dynamics in a magnetically insu- lated ion diode in bipolar-pulse mode are pre-sented. The experiments were done at the pulsed TEMP-4M accelerator by formation of a first negative pulse (100 ns, 150-200 kV) and a second positive pulse (80 ns, 250-300 kV). The voltage-current diode characteristics were used to analyze the plasma behavior in the anode- cathode gap. It is shown that, during the first pulse, a discrete emissive surface is formed on the graphite potential electrode and a plasma forms by explosive-emission, which before the second pulse comes, fills the whole working surface of the electrode and spreads to the anode-cathode gap. An analytical expression is obtained for the total current in the cellular structure approximation. It is shown that the current build-up for a cathode surface with dis- crete emitting centers is described satisfac- torily by a modified Child-Langmuir formula wi- th a form factor decreasing from F = 6 to 1. It is found that, once plasma formation at the gra- phite potential electrode is complete and until the second positive pulse, the plasma speed is constant and equals 1.3 ± 0.2 cm/µs. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Natural science |d 2009- | ||
| 463 | |t Vol. 2, iss. 5 |v [P. 419-426] |d 2010 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a экспериментальные исследования | |
| 700 | 1 | |a Pushkarev |b A. I. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Senior researcher |f 1954- |g Aleksandr Ivanovich |3 (RuTPU)RU\TPU\pers\32701 |9 16587 | |
| 701 | 1 | |a Isakova |b Yu. I. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1988- |g Yulia Ivanovna |3 (RuTPU)RU\TPU\pers\32700 |9 16586 | |
| 701 | 1 | |a Sazonov |b R. V. |c physicist |c senior researcher of Tomsk Polytechnic University, candidate of physico-mathematical Sciences |f 1984- |g Roman Vladimirovich |3 (RuTPU)RU\TPU\pers\32698 |9 16584 | |
| 801 | 2 | |a RU |b 63413507 |c 20170403 |g RCR | |
| 856 | 4 | |u http://dx.doi.org/10.4236/ns.2010.25051 | |
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