非共面对称不等能几何条件下电子离化He的(e,2e)反应

(e,2e) Collisions-ionization of Helium in Non-coplanar with Symmetric Scattering Angles but Non-symmetric Energies

运用修正后的BBK理论计算了入射能为64.6eV非共面对称不等能几何条件下,电子入射离化氦原子的三重微分截面,计算结果与实验结果进行比较发现两者符合的较好。从碰撞的微观机理上分析了影响出射电子角分布的原因。

The modified BBK theory is applied to electron - impact ionization of atomic helium at incident energies of 64.6eV. The triple - differential cross sections （TDCSs） are presented for the case of symmetry in scattering angle but non-symmetric energies in non-coplanar geometry. The calculated TDCSs are generally in good agreement with experiment. Analyzed the reasons that influence the angular distributions of the outgoing electrons from microscopic mechanism of collision.