【摘要】 本文在q×（20—150）keV的能量范围内,通过光学测量,对He⁺和He^-离子与碱余属原子Li碰撞过程中的靶激发过程进行了研究。由光学多道分析系统（OMA）,测得LiI670.8nm（2p→2s）,LiI610.4nm（3d→2p）,LiI460.3nm（4d→2p）和LiI812.6nm（3s→2p）谱线。给出所观察到的谱线的发射截面和相立的Li（2p）激发截面。对He⁺与Li碰撞过程,LiI670.8nm谱线发射截面与Aumayr等人相应的低能结果能够比较好地衔接。对He²⁺与Li碰撞过程,LiI670.8nm谱线发射截面与Ermolaev等人的理论结果及Kadota等人的实验结果在实验误差范围内符合得很好。更多还原

【Abstract】 Target atom excitations in collisions of He~+ and He2* with Li have been studied by optical measurement in the energy range q×(20-150) keV. We have measured Lil 670.8 nm (2p→2s), Lil 610.4 nm (3d→2p), Lil 460.3 nm (4d→2p) and Lil 812.6 nm (3s→2p) emission lines by using an OMA system. The emission cross sections of the observed lines and corresponding Li(2p) excitation cross sections have been calculated. For He+ +Li collision system, Lil 670.8 nm emission cross sections linked well with the results of Aumayr et al. at the low energy points. Our Lil 670.8 nm emission cross sections of He2++Li collision system agrees well with both the theory of Ermolaev er al. and the experimental results of Kadota et al. within the experimental errors.更多还原