Closed electron drift in a self-magnetically insulated ion diode
| Parent link: | Physics of Plasmas.— , 1958- Vol. 20, iss. 5.— 2013.— [053101, 7 р.] |
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| Summary: | Title screen The paper investigates a spiral geometry self-magnetically insulated ion diode with an explosive-emission cathode made from graphite. The experiments have been carried out using the TEMP-4M accelerator, with the accelerator configured to operate in double-pulse mode: the first negative pulse (300–500?ns, 100–150?kV) and the second positive pulse (150?ns, 250–300?kV). The ion beam energy density was 0.4–0.8?J/cm2 and the beam was composed of carbon ions (80%–85%) and protons. In order to increase the efficiency of ion current generation, we have developed a new diode with a spiral-shaped grounded electrode. Using this geometry, it seems possible to realize closed electron drift in a diode with self-magnetic insulation. In the spiral diode, the efficiency of accelerated ions is increased from 5%–9% (conventional self-insulated diodes) up to 30%–40%. The realization of closed electron drift in the diode increases the efficiency of C+ ion generation up to 40–50 times the Childe-Langmuir limit, which is more than 4 times higher than with other known constructions of self-magnetically insulated diodes. Режим доступа: по договору с организацией-держателем ресурса |
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2013
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| Online Access: | http://dx.doi.org/10.1063/1.4794971 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652404 |