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The point emitter as a positive-ion source

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Author
Herron, Russel Gardner
Date
1955-05-16
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Abstract
A needle-shaped tungsten "point" filament has been used as a positive ion source. Hydrogen ions were produced experimentally at room temperature from the point emitter under the effect of high electric fields. The electron field-emission microscope is recommended as a tool to augment data on adsorption, migration, and vaporization charac-teristics of the heavier elements. The preferential transfer of Cm242 as ions from an emitter point at 1600°K was observed. The point e-mitter is shown to be a source of positive ions for solid samples. Application of point-emitter techniques to mass spectroscopy is considered probable upon solution of the sample-replenishment problem . ii
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http://hdl.handle.net/10945/14503
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  • 1. Thesis and Dissertation Collection, all items

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    Kalman filtering techniques applied to airborne direction-finding and emitter location 

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    The objective of the analytical study was to develop an optimal emitter location algorithm using Kalman filtering techniques to filter emitter bearing angles-of-arrival information in a airborne, multi-emitter environment. ...
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    A spectroscopic investigation of an argon glow discharge 

    Austin, Robert C.; Schrader, Harry, C. (Monterey, California: U.S. Naval Postgraduate School, 1963);
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    Transient effects of polymer-organic light emitting diodes and their impact on individual identification friend/foe 

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