Perveance of a planar diode with a multipoint cathode; Technical Physics; Vol. 53, iss. 3
| Parent link: | Technical Physics.— , 1931- Vol. 53, iss. 3.— 2008.— [P. 363-367] |
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| 第一著者: | |
| 要約: | Title screen The I–V characteristics of a planar diode with a multipoint explosive emission cathode are studied under the conditions when the impedance of the diode is matched to the output resistance of the nanosecond generator. The experiments are carried out on the TEU-500 (350–500 keV, 60 ns, 250 J per pulse) high-current electron accelerator. The perveances of the diodes with a spike (140 spikes) cathode, multipoint copper cathode, and cathode made of carbon felt are measured in the course of electron beam generation. Comparison is performed between the I–V characteristics of the diodes with multipoint and continuous cathodes made of the same material. It is found that the electron current of the diode is described well by Child’s law with regard to the shrinkage of the anode-cathode gap and an increase in the emissive surface due to the expanding plasma (formfactor). When the cathode is made of carbon felt or is multipoint, the space-charge-limited electron current mode sets in even 5–10 ns after the voltage is applied. Режим доступа: по договору с организацией-держателем ресурса |
| 言語: | 英語 |
| 出版事項: |
2008
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| 主題: | |
| オンライン･アクセス: | http://dx.doi.org/10.1134/S1063784208030134 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652468 |
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| 200 | 1 | |a Perveance of a planar diode with a multipoint cathode |f A. I. Pushkarev | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 367 (10 tit.)] | ||
| 330 | |a The I–V characteristics of a planar diode with a multipoint explosive emission cathode are studied under the conditions when the impedance of the diode is matched to the output resistance of the nanosecond generator. The experiments are carried out on the TEU-500 (350–500 keV, 60 ns, 250 J per pulse) high-current electron accelerator. The perveances of the diodes with a spike (140 spikes) cathode, multipoint copper cathode, and cathode made of carbon felt are measured in the course of electron beam generation. Comparison is performed between the I–V characteristics of the diodes with multipoint and continuous cathodes made of the same material. It is found that the electron current of the diode is described well by Child’s law with regard to the shrinkage of the anode-cathode gap and an increase in the emissive surface due to the expanding plasma (formfactor). When the cathode is made of carbon felt or is multipoint, the space-charge-limited electron current mode sets in even 5–10 ns after the voltage is applied. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Technical Physics |d 1931- | ||
| 463 | |t Vol. 53, iss. 3 |v [P. 363-367] |d 2008 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a плоские диоды | |
| 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 | |
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| 856 | 4 | |u http://dx.doi.org/10.1134/S1063784208030134 | |
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