Ion Source for Low-Energy Negative Ions

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1962 English Publisher:AIP PublishingJournal:Review of Scientific Instruments, volume 33, pages 445-447 (issn: 0034-6748, eissn: 1089-7623,

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Authors: E. E. Muschlitz; H. D. Randolph; J. N. Ratti;

doi: 10.1063/1.1717876

Ion Source for Low-Energy Negative Ions

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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.

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University of Florida
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