X射线偏振:一般形式和偏振分析
X-ray polarization: General formalism and polarization analysis
摘要:
在非共振磁X射线散射和磁多极共振X射线散射等实验技术中,X射线的偏振起着重要的作用。不同的仪器方法可以将同步辐射光的自然偏振态转换为任意偏振态。几个同步加速器的应用,特别是在磁和共振散射领域依赖于改善的信号/噪声比或更深入的了解有序状态和散射过程中通过这些偏振技术成为可能。在这里,我们提出的数学框架的描述完全和部分偏振的X射线,与一些应用程序,如线性X射线偏振分析的散射光束的偏振的测定,和Ge K-边缘共振散射。
英文摘要:
The polarization of x-rays plays an outstanding role in experimental techniques such as non-resonant magnetic x-ray scattering and resonant x-ray scattering of magnetic and multipolar order. Different instrumental methods applied to synchrotron light can transform its natural polarization into an arbitrary polarization state. Several synchrotron applications, in particular in the field of magnetic and resonant scattering rely on the improvement in the signal/noise ratio or the deeper insight into the ordered state and the scattering process made possible through these polarization techniques. Here, we present the mathematical framework for the description of fully and partially polarized x-rays, with some applications such as linear x-ray polarization analysis for the determination of the scattered beam's polarization, and the Ge K-edge resonant scattering.
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