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Journal of Low Temperature Physics

, Volume 11, Issue 1–2, pp 15–31 | Cite as

Field emission and field ionization in liquid3He above 0.25 K

  • P. V. E. McClintock
Article

Abstract

We have investigated the field emission and field ionization in liquid3He under low pressure between 0.25 and 2.0 K. Experimental data in the high-current regime are strongly affected by the buildup of temperature gradients, but this effect can be avoided by pulsing the emitter. Under pulsed conditions in the space-charge region the data is well described by a simple theory which does not require detailed knowledge of the generating mechanism. Data at low currents, which are completely different for positive and negative ions, are presented and discussed but are not understood in detail. Comparison is drawn between this work and earlier studies of4He, and the advantages of this type of ion source for use in3He at ultra-low temperatures are discussed.

Keywords

Experimental Data Temperature Gradient Magnetic Material Field Emission Generate Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1973

Authors and Affiliations

  • P. V. E. McClintock
    • 1
  1. 1.University of LancasterLancasterEngland

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