Two-dimensional Penning ionization electron spectrum of N2 by collision with He*(23S) metastable atoms

被引:26
作者
Kishimoto, N [1 ]
Furuhashi, M [1 ]
Ohno, K [1 ]
机构
[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 98077, Japan
关键词
Penning ionization electron spectroscopy; collision energy; partial ionization cross-sections; metastable atom; nitrogen molecule; branching ratio;
D O I
10.1016/S0368-2048(97)00232-6
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
The collision-energy/electron-energy-resolve two-dimensional Penning ionization electron spectrum for N-2/He*(2(3)S) was observed in the collision-energy range 70-380 meV. A large peak shift to higher electron energies and band width broadening were observed for the A state with increase of collision energy in comparison to those for the X and B states. Branching ratios for the three ionic states of N-2(+) as a continuous function of collision energy were investigated. The order of the branching ratios changes from B > X > A to A > B > X in the 100-200 meV collision energy region. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:143 / 147
页数:5
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