论文标题
关于超薄晶体中快速电荷颗粒的相干和不连贯的散射
On coherent and incoherent scattering of fast charged particles in ultrathin crystals
论文作者
论文摘要
我们认为，在量子电动力学的诞生大约构成的底部的超薄晶体中散射的快速电荷颗粒。当晶体学轴和平面之一沿着粒子运动的方向向外呈正面时，主要注意散射横截面分裂成连贯和不连贯的组件的问题。结果表明，散射横截面的相干和不相干的成分都在很大程度上取决于相对于入射梁的晶体轴的方向。特别是，当颗粒被原子的晶体平面散射时，不连贯的散射横截面不包含Debye-Waller因子。
We consider the fast charged particles scattering in ultrathin crystals on the base of the Born approxima-tion of quantum electrodynamics. The main attention is paid to the question of the scattering cross section splitting into coherent and incoherent components when one of the crystallographic axes and planes is orient-ed along the direction of particle motion. It is shown that both the coherent and the incoherent components of the scattering cross section considerably depend on the orientation of the crystallographic axes relatively to the incident beam. In particular, it was shown that when particles are scattered by the crystal planes of atoms, the incoherent scattering cross section does not contain the Debye-Waller factor.
