Lyman-αemission from low-energy H impact on rare-gas atoms

Publisher Website
Google Scholar
Abstract
Absolute cross sections for the emission of Lyman-α radiation have been measured for low-energy H impact on rare-gas-atom targets. Data were obtained for H energies from 2.5 keV down to about 0.05 keV, and include measurements of the Lyman-α polarization. Using previously measured cross sections for Balmer-α and Balmer-β emission for the same collisions, it was possible to approximately evaluate the cascade contributions to the measured Lyman-α signals, and to extract the cross sections for direct 2p-state excitation during the collisions. The results are compared with the work of other investigators where possible.