Investigation of the characteristics of the explosive-emission cathode based on carbon fiber in pulsed-periodic electron beam generation
| Parent link: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 1039.— 2022.— [167175, 5 р.] |
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| Corporate Authors: | , |
| Other Authors: | , , , |
| Summary: | Title screen Explosive electron emission cathodes provide a high current density without auxiliary systems and, therefore, have long been the subject of research for high-power pulsed accelerators. The paper summarizes the results of studies on the operation of an explosive-emission cathode based on carbon fiber in operating modes with a pulse repetition rate of 5–15 pps, at a voltage rise rate of 2.5 Ч 1012 V/s. The change in current and voltage as a function of the number of pulses and the diode impedance in the pulsed-periodic mode with a voltage pulse duration of 200 ns at full width half maximum (FWHM) are studied. During testing, the total diode current reduced by 25%. The change in the characteristics of the cathode at different pulse repetition rates is given up to 3.2 Ч 105 pulses. Changes in characteristics are correlated with changes in the microstructure of the cathode surface, presented in the enlarged images of the cathode surface. Режим доступа: по договору с организацией-держателем ресурса |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://doi.org/10.1016/j.nima.2022.167175 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668709 |