Electron Elastic Scattering Resonances in the Collision of Fast Hydrogenic Ions with Molecular Hydrogen
Electron Elastic Scattering Resonances in the Collision of Fast Hydrogenic Ions with Molecular Hydrogen
复制标题
快速氢离子与氢分子碰撞中的电子弹性散射共振
DOI：
10.1238/physica.topical.092a00272
复制
发表时间：
2001
期刊：
影响因子：
2.9
通讯作者：
H. Aliabadi
中科院分区：
文献类型：
--
作者：
G. Tóth;P. Závodszky;C. Bhalla;P. Richard;S. Grabbe;H. Aliabadi
测量了高速生氢碳、氮、氧、氟离子在分子氢上的零度实验室观察角下电子产生的绝对双微分截面。选择了这些离子的能量，这样就可以在二元相遇电子分布的峰值附近清楚地观察到每种情况下的弹性散射共振2p21和1d。利用弹性散射模型(ESM)对这些离子的电子碰撞弹性微分截面进行了紧密耦合的R矩阵计算，并与测量的离子原子截面进行了关联。理论与实验数据吻合较好。
Absolute double differential cross sections for the electron production at zero degree laboratory observation angle were measured for high velocity hydrogenic carbon, nitrogen, oxygen and fluorine ions on molecular hydrogen. The energies of these ions were chosen so the elastic scattering resonance 2p2 1D for each case can be clearly observed near the peak of the binary encounter electron distribution. Close coupling R-matrix calculations of elastic differential cross sections of electron impact of these ions were related to the measured ion-atom cross sections by using the elastic scattering model (ESM). Excellent agreement was found between theory and experimental data.