ρs of confined 3He–4He using adiabatic fountain resonance

We have previously described a resonance involving the adiabatic motion of 4He from a superleak into a reservoir. We consider here the case of 3He–4He mixtures and show some preliminary results for ρs for confinement to a film with thickness L=0.0483 μm . We relate this to the behavior expected from correlation-length scaling.