Drift Tube‐Mass Spectrometer for Studies of Low‐Energy Ion‐Molecule Reactions
作者： E. W. McDaniel , D. W. Martin , W. S. Barnes
DOI: 10.1063/1.1717656
关键词: Ion 、 Population 、 Materials science 、 Mass spectrum 、 Spectral line 、 Torr 、 Electric field 、 Mass spectrometry 、 Atomic physics 、 Range (particle radiation) 、 Instrumentation (computer programming)
摘要: Apparatus has been developed for the mass spectrographic study of ion‐molecule reactions occurring under gas‐kinetic conditions. Ions are produced by electron bombardment inside a long drift tube containing gas at pressure up to about 0.7 torr. The ions diffuse down influence weak electric field. A sample ion population end is extracted through two‐stage, field‐free differential pumping section and passed into 60° magnetic deflection spectrometer. number collisions in may be varied over wide range changing source position and/or pressure. Information concerning nature probability revealed resulting changes ionic spectrum.
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