Theoretical aspects of incoherent nuclear resonant scattering

被引：70

作者：

Sturhahn, W ^{[1
]}

Kohn, VG

机构：

[1] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[2] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

来源：

HYPERFINE INTERACTIONS | 1999年 / 123卷 / 1-8期

关键词：

D O I：

10.1023/A:1017071806895

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The influence of nonrotational atomic motion on the scattering of X-rays by nuclei with sharp resonances is investigated. Two incoherent scattering channels, nuclear resonant fluorescence and nuclear resonant absorption followed by conversion electron emission and atomic fluorescence, are studied in detail. Time dependence and cross sections for these processes are given. In both cases, the cross section is proportional to the self-intermediate scattering function of the resonant isotope. The influence of other X-ray scattering processes on incoherent nuclear resonant scattering is discussed. We find that incoherent scattering channels dominate in off-resonance excitations. Self-intermediate scattering functions for the ideal gas and the harmonic lattice are calculated.

引用

页码：367 / 399

页数：33

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