Abstract
Penning collisions determine the creation of population inversion and the output parameters in a number of ion metal vapor lasers. Some different gaseous additives to the buffer gas also improve metal vapor laser operation via Penning impacts. Assuming that the process takes place by electron exchange between metastable and target atom, cross-sections and rate constants for Penning ionization into ion ground state are calculated for the metastable atoms He and Ne, and 22 target metal atoms, which are active particles in the metal vapour lasers. Cross-sections and rate constants for Penning ionization into excited ion states of the copper and bromine atoms are also calculated.
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