ELECTRON AND POSITRON CHANNELING RADIATION FROM BERYLLIUM-OXIDE

Citation
Hd. Dulman et al., ELECTRON AND POSITRON CHANNELING RADIATION FROM BERYLLIUM-OXIDE, Physical review. B, Condensed matter, 48(9), 1993, pp. 5818-5831
Citations number
27
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
48
Issue
9
Year of publication
1993
Pages
5818 - 5831
Database
ISI
SICI code
0163-1829(1993)48:9<5818:EAPCRF>2.0.ZU;2-C
Abstract
We present experimental observations of planar and axial channeling ra diation emitted by relativistic electrons and positrons traversing a B eO crystal. Values of thermal vibration amplitudes are obtained, and f ound to be in agreement with those obtained by other methods, namely, x-ray and neutron diffraction. The standard channeling-radiation theor y matches correctly the observed radiation spectra when the particle i s channeled along principal planes. Some of the planes with higher Mil ler indices give radiation spectra that can only be explained by the c oupling of the particle wave function to neighboring axes or planes, o r by population redistribution within the band.