氮分子离子N^＋2和氮原子离子N^＋与Ne原子碰撞激发的比较  

A COMPARISON OF EMISSION CROSS SECTIONS IN COLLISIONS BETWEEN N + 2 Ne AND N + Ne

作　　者：李大万[1] 潘广炎[1] 杨锋[1] 

机构地区：[1]中国科学院物理研究所

出　　处：《物理学报》1996年第9期1444-1449,共6页Acta Physica Sinica

摘　　要：用发射光谱法研究了同种元素氮的分子离子Ｎ＋２和原子离子Ｎ＋与Ｎｅ原子碰撞产生的激发态，获得了靶激发、入射分子离子的分解激发、入射原子离子的激发以及两种离子与靶之间的电荷转移激发等信息．计算了各发射谱线的发射截面．对两种离子引起的谱线发射截面的差异进行了分析，得出一些初步结论。The excited states produced in collisions of N + 2 and N + with Ne have been studied by using emission spectroscopy. The emission spectra show that there are four processes of the excitation in these collision systems, namely:(1) Direct excitation of target;(2) Direct excitation of atomic projectile;(3)Dissociative excitation of molecular ion;(4)Charge exchange excitation. The emission cross sections for each spectral line are calculated. A comparison of emission cross sections in collisions between N + 2 Ne and N + Ne is made. Some differences are found and the primary results have been discussed qualitatively.

关 键 词：氮 分子离子 原子离子 氖原子 碰撞激发 

分 类 号：O562.5[理学—原子与分子物理]