Production of krypton L vacancies in Kr-Kr and Kr-Xe collisions

Abstract
The X-ray production cross sections for the krypton L shell in Kr-Kr and Kr-Xe collisions are reported. The cross sections exhibit an energy dependence characteristic of 'triple-peak' structures in rapidly promoted 4f sigma molecular orbitals. The data suggest that in these collision systems for distances of closest approach less than about 0.1*101-10 m the probability of producing two L-shell vacancies is unity.