Metastability exchange in a mixture of helium isotopes at liquid nitrogen temperature
Zhitnikov R. A. , Kartoshkin V. A. , Klement'ev G. V., Usacheva L. V.
We investigated the optical orientation and the magnetic resonance of He3 and He4 atoms in 2 35, states in He3-He4 isotope mixtures. We measured the metasiability exchange cross sections σ (He3-He3) and o-(He3~ He4) at liquid-nitrogen temperature. An appreciable difference between these cross sections was observed.