摘要
首先在IOSA(Infinite-Order-Sudden-Approximation)方法中利用WKB近似方法代替Nemerov方法计算相移,然后对He与转动能层较大的H_2分子碰撞总的、弹性和转动激发积分散射截面进行了计算。结果表明,用此方法所计算总的和弹性散射截面的值与较准确的CC(Close-Coupling)方法得出值符合得很好,对非弹性散射截面,当取适当k值时,结果令人满意。
The Phase shift is calculated using WKB approximation instead of Nemerov method in IOSA, then, the total, elastic and rotational excitation cross sections for scattering of H_2 having high energy levels with He are calculated. The results indicate that the total and elastic cross sections are quite coincident with the CC values. For inelastic cross sections, the results are satisfactory when k is choosen suitably.
出处
《西北师范大学学报（自然科学版）》
CAS
1991年第3期25-29,共5页
Journal of Northwest Normal University(Natural Science)
关键词
HE
碰撞
转动激发截面
原子-分子
collision
rotational excitation
IOSA
WKB approximation
