Partial destruction of beam-foil alignment by molecular projectiles
- 28 March 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (6) , L205-L209
- https://doi.org/10.1088/0022-3700/13/6/007
Abstract
The 3P1-3P2 659 MHz quantum beat pattern of the 388.9 nm 2s-3p HeI transition has been measured as a function of carbon foil thickness using both He+ and HeH+ projectiles with the He energies varying from 70 to 260 keV. It is shown that the beat amplitude ratio A(HeH+)/A(He+) is a strong function of the foil thickness. An appreciable destruction of the alignment results for molecular ions impinging on the thinnest foils, corresponding to the smallest distance of the molecular fragments. A qualitative explanation of the result is suggested.Keywords
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