Spin exchange rate constant for collisions of metastable helium atoms with rubidium atoms
Sergei P. Dmitriev, N. A. Dovator, Victor A. Kartoshkin
The spin exchange rate constant C se in the He(23S1)-Rb(52S1/2) system has been measured for the first time in experiments on the optical orientation of metastable helium atoms in the presence of rubidium atoms. In the temperature interval T = 293–348 K, this value is C se = (1.8 ± 0.4) × 10−9 cm3 s−1. The chemiionization rate constant, which has been simultaneously measured in collisions of these particles, is C ci = (3.1 ± 0.6) × 10−9 cm3 s−1.
Technical Physics Letters•Aug 1, 2008•4 citations