A Calcium Aluminate Electride Hollow Cathode

@article{Rand2015ACA,
  title={A Calcium Aluminate Electride Hollow Cathode},
  author={Lauren Paula Rand and John Dalton Williams},
  journal={IEEE Transactions on Plasma Science},
  year={2015},
  volume={43},
  pages={190-194}
}
This paper discusses the development and testing of a C12A7 electride hollow cathode. C12A7:e- is a crystalline ceramic in which electrons clathrated in subnanometer sized cages act as a conductive medium. C12A7:e- has a predicted work function of 0.6 eV and hence is of interest in electron emission devices. A 6-mm diameter hollow cathode was fabricated with a C12A7:e- insert and operated for over 50 h on xenon with no signs of degradation. It was successfully started at room temperature… CONTINUE READING
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