Excitation-Transfer Collisions between Rubidium and Helium Atoms
- 7 January 1966
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 141 (1), 83-87
- https://doi.org/10.1103/PhysRev.141.83
Abstract
An experiment is described which measures the collision cross section for transfer of excitation in rubidium by helium. Rubidium atoms are pumped to either the or state by irradiation with one of the resonance lines. Some excited rubidium atoms are transferred to the other state by collisions with helium atoms. The rubidium atoms then radiate both resonance lines. Measurements of the intensities of both resonance lines as a function of helium pressure are used to calculate the collision cross section. The cross section for to is 1.0× ±10% and for to is 1.2× ±10%.
Keywords
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