Ions in He II at 1 degree K II. Heat flush effects

Abstract

The effect of a turbulent counter flow of liquid He II on the drift velocity of ions has been studied in a triode cell near 1 degree K. It was found that when the ion drift velocity in the applied field and the normal fluid flow were in the same direction then the apparent ion velocity was enhanced with a velocity increase greater than the maximum normal fluid velocity through the holes of the grid, while the critical velocity for a discontinuity was only slightly affected by the normal fluid flow. Negative ions were more strongly affected than positive ions.