【摘要】 根据电子在长直载流导线磁场中的运动和相对论性电子产生辐射的一般规律，计算并分析了电子在这种磁场中运动所产生的自发辐射强度分布，最后的结果中包含一个重要因子sin2η，正是它把自由电子的自发辐射与受激辐射联系起来了。更多还原

【Abstract】 The spantaneous emission of an electron in a magnetostatic field produced by current-carrying linear wire is investigated and an expression for the emission spectrum is obtained. The lineshape of the spectrum is also determined by the function sin c2η,it makes spantaneous emission contact with stimulated radiation.更多还原