Phase Separation in He3 -He4 Mixtures Observed With Slow Neutrons
Abstract
A method of studying phase separation in He3-He4 mixtures is described in which thermal neutrons are used to determine the He3 number density in each phase. Results of measurements made over the temperature range 0.04-0.85°K are presented and compared with those obtained by other methods. Extrapolation of the measurements made below 0.15°K indicates that the limiting solubility of He3 in He4 at T=0 °K is 6.84+/-0.06%. The second phase at low temperatures is found to be pure He3 within the 1% accuracy of the measurement.
- Publication:
-
Physical Review
- Pub Date:
- September 1968
- DOI:
- 10.1103/PhysRev.173.277
- Bibcode:
- 1968PhRv..173..277S