Enhancement of Lyman-α radiation following foil-induced dissociation of fast ionic hydrogen clusters
- 1 January 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 43 (1) , 121-126
- https://doi.org/10.1103/physreva.43.121
Abstract
We have measured the Lyman-α radiation following foil breakup of hydrogen ionic clusters (n=2 and n=3 to 61, odd) with velocities above and around the Bohr velocity. An enhancement of this radiation was observed and could reach a factor of 3 with respect to the proton case of the same velocity. Cluster mass number, velocity, and thickness dependences of the relative population of the 2p state in hydrogen fragments following foil dissociation have been extracted. A specific collective effect on the 2p-state hydrogen has been observed and interpreted in terms of charge-exchange processes.
Keywords
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