Vacuum Outgassing Behavior of Carbon Nanotube Cathode with High-Intensity Pulsed Electron Emission

Experimental investigations on the vacuum outgassing of a carbon nanotube （CNT） cathode with high-intensity pulsed electron emission on a 2 MeV linear induction accelerator injector are presented. Under the 1.60 MV diode voltage, the CNT cathode could provide 1.67 kA electron beam with the amount of...

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Bibliographic Details
Published in:Plasma science & technology 2015-02, Vol.17 (2), p.129-133
Main Author: 谌怡 张篁 夏连胜 刘星光 潘海峰 吕璐 杨安民 石金水 章林文 邓建军
Format: Article
Language:English
Subjects:
Accelerators
Carbon nanotubes
Cathodes
Diodes
Electric potential
Electron emission
Outgassing
Voltage
感应加速器
电子发射
真空脱气
真空除气
碳纳米管阴极
脉冲
行为
高强度
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Summary:Experimental investigations on the vacuum outgassing of a carbon nanotube （CNT） cathode with high-intensity pulsed electron emission on a 2 MeV linear induction accelerator injector are presented. Under the 1.60 MV diode voltage, the CNT cathode could provide 1.67 kA electron beam with the amount of outgassing of about 0.51 Pa.L. It is found that the amount of outgassing, which determines the cathode emission current, depends on the diode voltage and the vacuum.
ISSN:1009-0630
DOI:10.1088/1009-0630/17/2/06