标题： 相对论电子束的同步辐射去极化 显示英文标题

标题： Depolarization of synchrotron radiation of a relativistic electron beam

摘要： 我们提出了一项关于高能电子束在强磁场中垂直传播时辐射自极化的理论研究。最近，类似的设置被提议作为极化电子和光子束的源。我们专注于电子和辐射极化依赖于无量纲参数$\varepsilon$的情况，该参数与电子能量和磁场强度的乘积成正比。平衡方程的数值解表明，随着$\varepsilon$的增加，产生的电子束极化迅速增加，并在$\varepsilon \ll 1$时饱和，大约达到$-0.8$。如果$\varepsilon \gg 1$，则自极化率显著降低。同时，观察到同步辐射的大量或几乎完全去极化，特别是对于初始自旋平行于场的电子束。 显示英文摘要

摘要： We present a theoretical study on the radiative self-polarization of a high-energy electron beam propagating perpendicular to a strong magnetic field. Recently, a similar setup has been proposed as a source of polarized electron and photon beams. We focus on the dependence of electron and radiation polarization on the dimensionless parameter $\varepsilon$, which is proportional to the product of electron energy and magnetic field strength. The numerical solution of the balance equation shows that the resulting electron beam polarization increases rapidly as a function of $\varepsilon$ for $\varepsilon \ll 1$ and saturates at a value of approximately $-0.8$. If $\varepsilon \gg 1$, the rate of self-polarization decreases significantly. At the same time, a substantial or nearly complete depolarization of synchrotron radiation is observed, particularly for an electron beam with spins initially aligned parallel to the field.