用一种简单近似的数值模拟方法，模拟了光学速调管的自发辐射，分析和讨论了电子束能散对光学速调管自发辐射谱非线性展宽效应；
A numerical simulation of Optical Klystron ( OK ) spontaneous emission is presented by a simple and approximation method first in NSRL .
散调