title: The influence of interface roughness on Mössbauer filtration of synchrotron radiation at an isotope interface.
abstract: The influence of interface irregularities on synchrotron radiation Mössbauer filtration at an isotope interface is examined theoretically. Calculations are performed for a random-roughness interface model for a (56)Fe/(57)Fe isotope interface. The analysis shows that, despite a drop in the efficiency in the real structures compared with the idealized structures, the efficiency of Mössbauer filtration of synchrotron radiation remains high enough to ensure a successful experiment. In particular it was found that, as well as a regular saw-like profile of the external interface, a randomly rough profile of the external interface may also be used in the Mössbauer filtration experiment if the roughness parameters satisfy certain demands.
authors.affiliation: L. D. Landau Institute for Theoretical Physics, Kosygin str. 2, 117334 Moscow, Russia.
authors.forename: V A
authors.initials: VA
authors.lastname: Belyakov
authors.forename: S V
authors.initials: SV
authors.lastname: Semenov