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P3-37: Emission characteristics of Sc- doped dispenser cathodes in electron gun open structures

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作者:

Liu, Wei (Liu, Wei.) | Wang, Yiman (Wang, Yiman.) | Zhao, Lei (Zhao, Lei.) | 展开

收录:

EI Scopus

摘要:

Emission properties of Scandia Doped Dispenser (SDD) cathodes tested in Pierce Gun open structures have been reported in this paper. 80-100 A/cm 2 Space - Charge Limited ( SCL) current densities have been obtained at designed anode voltages and normal operating temperatures for cathodes with either flat surfaces or concave surfaces. The influences of anode effects on cathodes, which appear in close - spaced diodes, are discussed in the paper. © 2010 IEEE.

关键词:

Vacuum technology Thermionic emission Electron guns Dispensers Anodes Cathodes

作者机构:

  • [ 1 ] [Liu, Wei]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
  • [ 2 ] [Wang, Yiman]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
  • [ 3 ] [Zhao, Lei]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
  • [ 4 ] [Li, Lili]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
  • [ 5 ] [Zhang, Xizhu]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China
  • [ 6 ] [Wang, Jinshu]School of Materials Science and Engineering, Beijing University of Technology, 100 Pingleyuan, Beijing 100124, China

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年份: 2010

页码: 403-404

语种: 英文

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 3

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