Channeling radiation from LiH and LiD

We have obtained channeling-radiation spectra for both electrons and positrons incident along the major planes of LiH and LiD crystals. Analysis of the data yields two significant results: (1) the thermal-vibration amplitude of LiD is smaller than that of LiH, as one would expect for this isotopic e...

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Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 119; no. 1; pp. 71 - 78
Main Authors Berman, B.L., Kephart, J.O., Datz, S., Klein, R.K., Pantell, R.H., Swent, R.L., Park, H., Alguard, M.J., Hynes, M.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.1996
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Summary:We have obtained channeling-radiation spectra for both electrons and positrons incident along the major planes of LiH and LiD crystals. Analysis of the data yields two significant results: (1) the thermal-vibration amplitude of LiD is smaller than that of LiH, as one would expect for this isotopic effect, but in contradiction with tabulated values; and (2) a tunneling transition was observed for 54-MeV electron channeling along the (111) planes of both LiH and LiD.
ISSN:0168-583X
1872-9584
DOI:10.1016/0168-583X(96)00055-9