Quantum theory of Thomson scattering
Quantum theory of Thomson scattering
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DOI：
10.1016/j.hedp.2014.08.002
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发表时间：
2014-12-01
影响因子：
1.6
通讯作者：
Gregori, G.
中科院分区：
文献类型：
--
作者：
Crowley, B. J. B.;Gregori, G.
本文从量子力学的观点描述了在非相对论体系中电磁辐射在原子等离子体和金属中散射的一般理论，其中考虑了哈密顿量中的Kramers-Heisenberg极化项。除了导出各向同性有限温度多组分系统中双微分汤姆逊散射截面的一般公式外，本文还考虑了与之密切相关的现象，如吸收、折射、拉曼散射、共振（瑞利）散射和布拉格散射，并导出了这些量之间的许多基本关系。特别是，这项工作引入了散射强度和强度密度场的概念，它取代了正常的粒子密度场的散射的标准治疗由一个类似的粒子的集合，它是分解的强度密度相关函数到更熟悉的组件，导致最终的结果。与以前的工作，特别是Chihara的[1]进行了比较。(C)2014年版权所有/AWE PLC。由爱思唯尔公司出版
The general theory of the scattering of electromagnetic radiation in atomic plasmas and metals, in the non-relativistic regime, in which account is taken of the Kramers-Heisenberg polarization terms in the Hamiltonian, is described from a quantum mechanical viewpoint. As well as deriving the general formula for the double differential Thomson scattering cross section in an isotropic finite temperature multicomponent system, this work also considers closely related phenomena such as absorption, refraction, Raman scattering, resonant (Rayleigh) scattering and Bragg scattering, and derives many essential relationships between these quantities. In particular, the work introduces the concept of scattering strength and the strength-density field which replaces the normal particle density field in the standard treatment of scattering by a collection of similar particles and it is the decomposition of the strength-density correlation function into more familiar-looking components that leads to the final result. Comparisons are made with previous work, in particular that of Chihara [1]. (C) 2014 Crown Owned Copyright/AWE PLC. Published by Elsevier B.V.