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利用碰撞参数玻恩近似方法研究了Debye等离子体环境中高能H++H的碰撞激发过程,研究了不同Debye半径下氢原子1s→2p的激发耦合相互作用矩阵元、入射粒子能量为160 keV/u的激发电子跃迁概率以及入射粒子能量范围为100—1000 keV/u的碰撞激发截面.结果表明:随着屏蔽效应的增强,激发截面减小.根据激发截面的公式以及计算结果详细分析了引起激发截面减少的原因.入射粒子与激发电子之间的屏蔽相互作用势和靶的电子结构(波函数和能级)对激发截面都有很重要的影响.
The collision excitation process of high energy H + + H in Debye plasma environment was studied by the collision parameter Born approximation. The excitation coupling interaction matrix elements of 1s → 2p hydrogen atoms at different Debye radii were studied. The energy of incident particles was 160 keV / u, and the collision excitation cross section with incident particle energy range of 100-1000 keV / u.The results show that the excitation cross section decreases with the increase of the shielding effect.According to the formula of the excitation cross section and the calculation results, The reason for the decrease of the excitation cross section The shielding interaction potential between the incident particle and the excited electron and the electronic structure (wave function and energy level) of the target have a very important influence on the excitation cross section.