Ion Source for Low-Energy Negative Ions
- 1 April 1962
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 33 (4) , 445-447
- https://doi.org/10.1063/1.1717876
Abstract
A negative ion source is described which is capable of producing negative ion beams of moderate intensity, but with relatively narrow spread in ion energy. The source consists essentially of a jet of gas intersected by an electron beam. The pressure in the vicinity of the thermionic electron source is kept low by differential pumping. Although ion currents are not as high as those obtained with discharge sources, the present source produces ion beams particularly free of noise and instability.Keywords
This publication has 8 references indexed in Scilit:
- Application of Thoria-Iridium as the Source of Ionizing Electrons in Mass SpectrometryReview of Scientific Instruments, 1958
- Formation of Negative Ions in Gases by Secondary Collision ProcessesJournal of Applied Physics, 1957
- Scattering of Low-Energy H— Ions in Helium, Neon, and ArgonThe Journal of Chemical Physics, 1957
- Elastic and Inelastic Scattering of Low-Velocity He+ Ions in HeliumThe Journal of Chemical Physics, 1957
- Negative Hydrogen Ion SourceReview of Scientific Instruments, 1956
- Production of Negative Ions and Noise in Negative Ion BeamsPhysical Review B, 1953
- Spectral Emissivity and Electron Emission Constants of Thoria CathodesJournal of Applied Physics, 1948
- Negative Atomic Hydrogen IonsPhysical Review B, 1936