反比相关的双曲余弦平方势与相对论电子面沟道辐射的经典描述

在经典力学框架内,描述了带电粒子自发辐射谱分布与最大辐射频率;引入反比相关的双曲余弦平方势,讨论了超相对论电子的面沟道辐射,导出了电子能量E=5.0GeV时,一次谐波的最大辐射能量ε=57MeV,与其他工作比较基本一致.沟道辐射与自由电子激光十分类似,它的方向性极好,大都集中在粒子运动方向、角宽Δθ≈γ^-1/2范围内;且能量高、连续可调,偏振度也很好.指出了利用超晶格沟道辐射与超晶格的多层薄膜结构相互作用,可望把自发的沟道辐射改造为相干辐射,从而得到X激光或γ激光.

ch-2x Potential and Classical Describtion of Planar Channelling Radiation for Relativistic Electron

The planar channelling radiation for the super-relativistic electron is discribed by the classical electron-dynamical method; the spectral distribution and the maximum radiation energy are derived in classical mechanic frame. ch^-2x potential described to a interaction of particle with the crystal is introduced. As example, the channelling radiation for a electron in the Si(110) planar channel is calculated.It shows that the maximum radiation energy may be represented as ε=ω=57lMeV for a l-order harmonics, the result is consistent with other work. A direction level of the channelling radiation is very well, and the greater part of the energy concentrate in a reqgion with angle width of Δθ≈γ^-1/2 alone the motion direction of an electron,but also the radiation energy is very high.As example,the channelling radiation energy for 1-st order harmonic is ε=57.0MeV for a electron with energy 5.0GeV. Obviously, this energy is located in a γ-region, thus it is possible to take the channeling radiation as a new X-laser or γ-laser. In addition,the polarization level of the channeling radiation is very well also. Of course, take an attempt to reform the channelling radiation as a new type of X-laser and γ-laser require great efforts. It is expected that the coherence of the channelling radiation may be obtained by using a interaction between the channelling radiation and the superlattice with a multi-layer film construction.