ALIGNMENT OF IONIC GROUND STATE OF XE BY ELECTRON-IMPACT IONIZATION OBSERVED THROUGH EXCHANGE COLLISION WITH NEUTRAL METASTABLE STATE

被引：7

作者：

HADEISHI, T

LIU, CH

机构：

[1] Lawrence Radiation Laboratory, University of California, Berkeley, CA

来源：

PHYSICAL REVIEW | 1968年 / 170卷 / 01期

关键词：

D O I：

10.1103/PhysRev.170.145

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The radio-frequency paramagnetic-resonance method was used to observe the exchange collisions between the singly ionized Xe ground state P322 and the neutral metastable state P23. The ionic ground-state and metastable-state atoms are both formed and aligned by unidirectional low-energy high-flux electron-beam impact. The magnetic resonances of even and odd ionic ground-state atoms were observed by monitoring changes in the transparency of the resonance radiation absorbed by the metastable-state atoms. Phenomenological theories are presented which explain the sign of the magnetic-resonance signal of the ionic ground state relative to that of the neutral metastable state, together with independent experimental evidence to support the theories. Conclusive experimental evidence is presented supporting our original assumptions that the ionic ground-state Xe+(P322) is aligned by low-energy electron-impact ionization and that such alignment is detectable through the results of exchange collisions with the metastable state. © 1968 The American Physical Society.

引用

页码：145 / &

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