Polarization transfer of bremsstrahlung arising from spin-polarized electrons.
Polarization transfer of bremsstrahlung arising from spin-polarized electrons.
复制标题
DOI：
10.1103/physrevlett.108.264801
复制
发表时间：
2012-06
影响因子：
8.6
通讯作者：
R. Märtin;G. Weber;R. Barday;Y. Fritzsche;U. Spillmann;W. Chen;R. Dubois;J. Enders;M. Hegewald-M.
中科院分区：
文献类型：
--
作者：
R. Märtin;G. Weber;R. Barday;Y. Fritzsche;U. Spillmann;W. Chen;R. Dubois;J. Enders;M. Hegewald-M.
本文报道了电子-原子轫致辐射中横向极化入射电子与发射x射线之间的极化传递。利用康普顿偏振法，首次对与线偏振有关的轫致辐射的全部性质，即线偏振度和偏振轴的取向进行了能量差测量。对于轫致辐射连续体的高能端，两种观测值对初始电子自旋极化都有很高的灵敏度，并证明了极化取向实际上与光子能量无关。
We report on a study of the polarization transfer between transversely polarized incident electrons and the emitted x rays for electron-atom bremsstrahlung. By means of Compton polarimetry we performed for the first time an energy-differential measurement of the complete properties of bremsstrahlung emission related to linear polarization, i.e., the degree of linear polarization as well as the orientation of the polarization axis. For the high-energy end of the bremsstrahlung continuum the experimental results for both observables show a high sensitivity on the initial electron spin polarization and prove that the polarization orientation is virtually independent of the photon energy.