Attenuation Cross Sections for Single-Electron Capture of Proton in Collision with Alkali-Atom Targets
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Total cross sections for single-electron capture by H+ in collisions with Cs, Rb, K, and Na atoms have been measured in the H+ energy range from 0.3 to 5.0 keV. Attenuation method was used to avoid the problem of detection efficiency of neutral H0 atom, and the accuracy was improved to a considerable extent in comparion with the previous results which were obtained in this laboratory from growth of collision products H0. Except the case of Na, the present study confirms the previous results, and agreement with other experimental and theoretical results is satisfactory in both general energy dependence and absolute magnitude. The cross sections for Rb and K targets show the structure which probably arises from interaction of charge-exchange channels with closely-lying excitation channels of alkali atom and/or secondary long-range interactions between charge-exchange channels.
- 日本質量分析学会の論文
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