Line shifts of channeling radiation from MeV electrons

Autor:	Lene Vestergaard Hau, J. U. Andersen
Rok vydání:	1993
Předmět:	Physics Nuclear and High Energy Physics Radiation Phonon Magnitude (mathematics) Electron Condensed Matter Physics Lamb shift Nuclear physics Thermal General Materials Science Atomic physics Absorption (electromagnetic radiation) Line (formation)
Zdroj:	Radiation Effects and Defects in Solids. 125:75-80
ISSN:	1029-4953 1042-0150
DOI:	10.1080/10420159308225484
Popis:	Recent progress in the evaluation of higher-order corrections to the continuum-model description of channeling radiation from MeV electrons is discussed. The most important corrections are found from thermal scattering, and to second order in a time-dependent perturbation expansion, a ‘phonon Lamb shift’ is obtained, caused by emission and absorption of virtual phonons. It turns out that the third-order thermal correction must be included since it contains a shift which is of the same magnitude or larger. The possible significance of the second-order level shifts due to electronic excitations is also considered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c48e9aee5f8beff8e0c991a45a743482 https://doi.org/10.1080/10420159308225484 Zobrazit plný text záznamu