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Ionization in a Mass Spectrometer by Monoenergetic Electrons
Over the last few years, a method has been developed for obtaining ionization probability curves with essentially monoenergetic electrons. A retarding potential is applied to the electron beam toExpand
Electron Attachment in Sulfur Hexafluoride Using Monoenergetic Electrons
Electron attachment leading to the formation of SF6— and SF5— in sulfur hexafluoride has been investigated using nearly‐monoenergetic electrons of established energies of less than 2 ev. TheExpand
Metastable Ions Formed by Electron Impact in Hydrocarbon Gases
It has been recently reported that the non-integral masses appearing in the mass spectra of various hydrocarbons may be explained by the spontaneous dissociation of some of the ions into fragments ofExpand
Multiple Ionization in Argon and Krypton by Electron Impact
The formation of multiply charged ions by electron impact in argon and krypton is studied with a mass spectrometer. The behavior of the ionization cross section as a function of electron energy isExpand
Study of Carbon Monoxide, Nitrogen, Propylene, and Benzene Ionization Probability Curves near Threshold
Ionization probability curves for the formation of CO+, N2+, C3H6+, and C6H6+ have been obtained for some six volts above threshold. The technique employed provided both ionization by essentiallyExpand
Mass Spectrometer Investigation of Ionization of N2O by Electron Impact
The N2O molecule has been studied with a nearly monoenergetic electron beam. A result of the positive ion data is a value for D(N2–O) ≤ 1.34±0.2 ev and a value of D(N–NO) ≤ 4.50+0.10 ev. MeasurementsExpand
The use of retarding potentials with the mass spectrometer.
In addition to the use of stopping potentials for the study of metastable ions in a mass spectrometer, there are several other important uses including the study of ions formed with kinetic energy.Expand