Argon and rare gas instability with heavy metal cathode penning pumps

@inproceedings{Vaumoron1970ArgonAR,
  title={Argon and rare gas instability with heavy metal cathode penning pumps},
  author={Ja Vaumoron and Mp De Biasio},
  year={1970}
}
The stability of Penning pumps to rare gases is studied. For pumps with flat cathodes the ratio R of the mass of the cathode atom to the mass of the impinging rare gas ion is directly related to the presence of cyclic instabilities. The ratio, R min , above which a pump is stable is determined experimentally. 

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