On the theory of time-resolved X-ray diffraction

被引：60
|
作者：
Henriksen, Niels E. [1 ]
Moller, Klaus B. [1 ]
机构：
[1] Tech Univ Denmark, CMM, Dept Chem, DK-2800 Lyngby, Denmark
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2008年 / 112卷 / 02期
关键词：
D O I：
10.1021/jp075497e
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We derive the basic theoretical formulation for X-ray diffraction with pulsed fields, using a fully quantized description of light and matter. Relevant time scales are discussed for coherent as well as incoherent X-ray pulses, and we provide expressions to be used for calculation of the experimental diffraction signal for both types of X-ray sources. We present a simple analysis of time-resolved X-ray scattering for direct bond breaking in diatomic molecules. This essentially analytical approach highlights the relation between the signal and the time-dependent quantum distribution of internuclear positions, including thermal effects.
引用
收藏
页码：558 / 567
页数：10
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