DETERMINATION OF SPIN-EXCHANGE PARAMETERS BETWEEN OPTICALLY PUMPED RUBIDIUM AND KR-83

The spin-exchange rates due to binary collisions and due to the formation of van der Waals molecules between Kr83 nuclei and optically pumped rubidium-metal vapor have been determined using a technique that relies on the simultaneous observation of frequency shifts of nuclear magnetic resonance lines of noble-gas atoms and corresponding frequency shifts of electron paramagnetic resonance lines of alkali-metal atoms. In contrast, earlier studies have relied on the observation of the spin-relaxation rate of either the alkali-metal atoms or the noble-gas atoms. © 1990 The American Physical Society.