Measurements on Ionic Mobilities in Liquid 4He

  • G. M. Daalmans
  • M. Naeije
  • J. M. Goldschvartz
  • B. S. Blaisse


We have measured ionic mobilities in liquid helium in the temperature range 1.25–4.24°K. The method used1 is based on the measurement of the pressure generated by ions moving in an electric field. We melted two electrodes, one flat and one pin-shaped, in a glass tube which is open on both ends. Creation of ions takes place in the neighborhood of and at the very sharp tungsten electrode under the influence of a potential difference of 6–30 kV. We measured the pressure generated inside the glass tube as a level difference Δh between the liquid helium levels inside and outside the tube.


Ionic Mobility Ring Vortex Average Mobility Electron Bubble Flat Electrode 
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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • G. M. Daalmans
    • 1
  • M. Naeije
    • 1
  • J. M. Goldschvartz
    • 1
  • B. S. Blaisse
    • 1
  1. 1.Department of Applied PhysicsDelft University of TechnologyDelftThe Netherlands

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