A Submicrosecond High-Current Electron Beam Source with an Explosive-Emission Cathode and an Auxiliary Discharge Initiated by a Pre-Pulse

2018 ◽  
Author(s):  
Andrey Zherlitsyn ◽  
Nikolay Tsoy
Keyword(s):  
Electron Beam ◽  
High Current ◽  
Explosive Emission ◽  
Beam Source ◽  
High Current Electron Beam ◽  
Explosive Emission Cathode ◽  
Current Electron ◽  
Emission Cathode ◽  
High Current Electron

scholarly journals Катодный узел сильноточной электронной пушки с многоканальным инициированием эмиссии пробоем по поверхности диэлектрика

2020 ◽  
Vol 46 (15) ◽  
pp. 47
Author(s):  
П.П. Кизириди ◽  
Г.Е. Озур
Keyword(s):  
Electron Gun ◽  
High Current ◽  
Explosive Emission ◽  
Plasma Anode ◽  
Traditional Scheme ◽  
Cathode Assembly ◽  
Explosive Emission Cathode ◽  
Current Electron ◽  
Emission Cathode ◽  
High Current Electron

A new scheme of the cathode assembly of a high-current electron gun is presented. Initiation of explosive emission is performed with the help of sixty nine simultaneously operating spark gaps which electrodes and tube ceramic isolators are inserted into a disc explosive-emission cathode. The operability and high emissivity of the cathode assembly which exceeds by 1.5‒1.7 times the value inherent in traditional scheme of an electron gun with plasma anode and copper-braid explosive-emission cathode has been demonstrated.

scholarly journals Токовые характеристики сильноточной электронной пушки с многоканальным инициированием взрывной эмиссии пробоем по поверхности диэлектрика

2021 ◽  
Vol 91 (11) ◽  
pp. 1764
Author(s):  
В.И. Петров ◽  
П.П. Кизириди ◽  
Г.Е. Озур
Keyword(s):  
Electron Gun ◽  
Arc Plasma ◽  
High Current ◽  
Explosive Emission ◽  
Plasma Sources ◽  
Cathode Assembly ◽  
Explosive Emission Cathode ◽  
Current Electron ◽  
Emission Cathode ◽  
High Current Electron

Current characteristics of a plasma-filled, high-current electron gun with a new cathode assembly which can be named as a controlled explosive-emission cathode have been investigated. Multi-gap initiation of explosive emission is performed with the use of parallel operated, resistively decoupled arc plasma sources which electrodes and tube ceramic isolators are built-in to the explosive-emission cathode. The initiation of explosive emission was performed using 69 operating in parallel arc plasma sources whose electrodes and tubular ceramic insulators are inserted to the disk explosive-emission cathode. Experiments have demonstrated operability of high-current electron gun with a new cathode assembly at accelerating voltage up to 30 kV and its good emissivity (average in area current density) which was approximately 1.4–2.4 times higher than an emissivity of traditional electron gun with plasma anode and multi-wire copper cathode.

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