Trapping of Negative Ions in Turbulent Superfluid Helium
- 10 November 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 23 (19), 1090-1093
- https://doi.org/10.1103/physrevlett.23.1090
Abstract
Capture and escape of negative ions by vorticity resulting from a supercritical heat current in liquid He II are demonstrated in the temperature range between 1.6 and 1.8°K. The vorticity is identical to that produced by rotation except for configuration of the individual lines. The escape probability was measured between 1.7 and 1.8°K and is in agreement with the theory of Donnelly.Keywords
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