Research on Multi-pulsed High Intense Electron Vacuum Diode

XIA Lian-Sheng; WANG Wen-Dou; MOU Fan; ZHANG Huang; CHEN De-Biao; ZHANG Kai-Zhi; SHI Jin-Shui; DENG Jian-Jun; ZHANG Lin-Wen

Chinese Physics C> 2007, Vol. 31> Issue(6) : 593-596

Research on Multi-pulsed High Intense Electron Vacuum Diode

Institute of Fluid Physics, CAEP, Mianyang 621900, China

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Abstract：
There are some differences between the single pulsed vacuum diode and the multi-pulsed vacuum diode. When vacuum diode is working under multi-pulsed mode, cathode plasma changes the designed condition inevitably. Formulas are presented in the paper to describe the vacuum while it is working under multi-pulsed mode. Simulation is used to describe cathode plasma explosion behavior. A column explosion mode is adopted in the paper while simulating cathode emitting. Experiments are also undertaken to study the characteristics of electron beams generated by a double pulsed intense electron diode with velvet cathode. When the diode pulsed voltages are 700kV, the beams' brightness is better than 1×10⁸A/(m.rad)² and the two beams' envelope changes little during beams' extraction process.

References

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XIA Lian-Sheng, WANG Wen-Dou, MOU Fan, ZHANG Huang, CHEN De-Biao, ZHANG Kai-Zhi, SHI Jin-Shui, DENG Jian-Jun and ZHANG Lin-Wen. Research on Multi-pulsed High Intense Electron Vacuum Diode[J]. Chinese Physics C, 2007, 31(6): 593-596.

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Received: 2006-10-24
Revised: 2006-12-08

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Research on Multi-pulsed High Intense Electron Vacuum Diode

Corresponding author: XIA Lian-Sheng,

Institute of Fluid Physics, CAEP, Mianyang 621900, China

Received Date: 2006-10-24

Accepted Date: 2006-12-08

Available Online: 2007-06-05

Abstract: There are some differences between the single pulsed vacuum diode and the multi-pulsed vacuum diode. When vacuum diode is working under multi-pulsed mode, cathode plasma changes the designed condition inevitably. Formulas are presented in the paper to describe the vacuum while it is working under multi-pulsed mode. Simulation is used to describe cathode plasma explosion behavior. A column explosion mode is adopted in the paper while simulating cathode emitting. Experiments are also undertaken to study the characteristics of electron beams generated by a double pulsed intense electron diode with velvet cathode. When the diode pulsed voltages are 700kV, the beams' brightness is better than 1×10⁸A/(m.rad)² and the two beams' envelope changes little during beams' extraction process.

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Research on Multi-pulsed High Intense Electron Vacuum Diode

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通讯作者: 陈斌, bchen63@163.com

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