均匀磁场中辐射电子的阻尼运动  

The motion of an electron with radiation damping in a homogeneous magnetic field

作　　者：安树元[1] 叶坚[2] 

机构地区：[1]首都师范大学物理系,北京100037 [2]南京师范大学物理科学与技术学院,江苏南京210042

出　　处：《东北师大学报（自然科学版）》2002年第4期34-40,共7页Journal of Northeast Normal University(Natural Science Edition)

摘　　要：　介绍了均匀磁场中计算辐射阻尼影响时相对论电子协变运动方程的一种解析求解方法.在场强约束条件γB 9×1011T下导出了电子运动的初级近似解和相应的同步辐射能量损失率的表达式.最后,简单讨论了所得结果的适用性和量子效应对运动解精度的可能影响.In the present paper an analytical solution to the equation of motion in covariant form for a relativistic electron in a homogeneous magnetic field is presented with the radiation damping taken into account.A first approximation solution for electron motion and the corresponding expression for synchrotron energy loss rate are derived with field strengths and electron energy satisfying the constraint γB9×1011T.Finally,the applicability of resulting solution and the possible influence of quantum effects on accuracy of the solution are briefly discussed.

关 键 词：均匀磁场 阻尼运动 辐射阻尼 协变运动方程 电子运动 电动力学 能量损失 

分 类 号：O442[理学—电磁学]