Protecting the anode foil of a high-current electron accelerator against arc-discharge damage / V. V. Ezhov, E.V. Krastelev, G. E. Remnev

Уровень набора: Technical Physics Letters, Scientific JournalОсновной Автор-лицо: Ezhov, V. V.Альтернативный автор-лицо: Krastelev, E.V.;Remnev, G. E., physicist, Professor of Tomsk Polytechnic University, Doctor of technical sciences, 1948-, Gennady EfimovichЯзык: английский.Резюме или реферат: The mechanism of anode foil damage during the extraction of a high-power pulsed electron beam from a high-current diode has been experimentally studied on a TEU-500 electron accelerator [1]. It is established that the breakage of the anode foil is caused by the appearance of cathode spots on its surface, the intense electron emission from these spots during positive voltage pulses (postpulses following the main negative pulse of accelerating voltage), and the formation of arc discharge in the interelectrode gap. The improvement of diode matching to the pulse-forming line of the accelerator and the use of an auxiliary electrode (anode) forming additional vacuum discharge gap (crowbar) with the cathode practically excludes the anode foil breakage by arc discharge and significantly increases the working life of the foil (up to ~105 electron beam pulses)..Примечания о наличии в документе библиографии/указателя: [References: p. 732 (5 tit.)].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References: p. 732 (5 tit.)]

The mechanism of anode foil damage during the extraction of a high-power pulsed electron beam from a high-current diode has been experimentally studied on a TEU-500 electron accelerator [1]. It is established that the breakage of the anode foil is caused by the appearance of cathode spots on its surface, the intense electron emission from these spots during positive voltage pulses (postpulses following the main negative pulse of accelerating voltage), and the formation of arc discharge in the interelectrode gap. The improvement of diode matching to the pulse-forming line of the accelerator and the use of an auxiliary electrode (anode) forming additional vacuum discharge gap (crowbar) with the cathode practically excludes the anode foil breakage by arc discharge and significantly increases the working life of the foil (up to ~105 electron beam pulses).

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