论文部分内容阅读
指出了用传统方法把自由电子激光(FEL)推向更短波长将在技术上遇到严重挑战,并试图寻找新的光源。在周期弯曲晶体中作沟道运动的粒子,在沟道辐射的同时,还将不断产生摆动场辐射。在摆动场轨道曲率最大或最小处,摆动场辐射与粒子束平行,情况与自由电子激光类似。在摆动场轨道曲率相继最大(或最小)处产生的光子是受激的,且频率比常规自由电子激光高得多。在简谐近似下,描述了沟道辐射和摆动场辐射频率与频谱分布,讨论了沟道辐射和摆动场辐射之间的关系,分析了利用晶体摆动场辐射作为X-激光或γ激光的可能性。
Pointed out that the traditional approach to the free electron laser (FEL) to a shorter wavelength will be technically a serious challenge, and try to find a new light source. Particles that act as channel motions in periodic flexural crystals will continue to produce oscillating field radiation as they radiate in the channel. At the maximum or minimum curvature of the orbiting field, the oscillating field radiation is parallel to the particle beam, similar to a free electron laser. The photons generated at successive maximum (or minimum) orbital curvatures of the wobbling field are excited and at a much higher frequency than conventional free-electron lasers. Under simple harmonic approximation, the radiation frequency and spectral distribution of channel radiation and swing field are described. The relationship between channel radiation and swing field radiation is discussed. The possibility of utilizing the radiation of crystal swing field as X- or γ-laser Sex.