Diffusion transport of negative ions through the interface between cryogenic liquids
Abstract
A theory of electron bubble transport through the interface between cryogenic liquids is developed based on a new approach to calculating the potential of interaction of a bubble with the interface. The theory is in good agreement with experiments on the electric-field dependence of the potential barrier near the interface between liquid 4He, 3He, and vacuum, as well as at the interface between 3He and 4He saturated solutions. It is found that the interaction potential dependence on the distance between the electron bubble and the interface is isotopically invariant to three versions of such an interface. The dependence of the lifetime of negative ions in 4He and 3He on the temperature and electric field has been determined using the Kramers theory.
- Publication:
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Soviet Journal of Experimental and Theoretical Physics
- Pub Date:
- April 2010
- DOI:
- 10.1134/S1063776110040163
- Bibcode:
- 2010JETP..110..694L