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Theoretical Current-Voltage Curve in Low-Pressure Cesium Diode for Electron-Rich EmissionAlthough considerable interest has been shown in the space-charge analysis of low-pressure (collisionless case) thermionic diodes, there is a conspicuous lack in the presentation of results in a way that allows direct comparison with experiment. The current-voltage curve of this report was, therefore, computed for a typical case within the realm of experimental interest. The model employed in this computation is shown in Fig. 1 and is defined by the limiting potential distributions [curves (a) and (b)]. Curve (a) represents the potential V as a monotonic function of position with a slope of zero at the anode; curve (b) is similarly monotonic with a slope of zero at the cathode. It is assumed that by a continuous variation of the anode voltage, the potential distributions vary continuously from one limiting form to the other. Although solutions for infinitely spaced electrodes show that spatically oscillatory potential distributions may exist, they have been neglected in this computation.
Document ID
Document Type
Reprint (Version printed in journal)
Coldstein, C. M. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
November 23, 2015
Publication Date
March 1, 1964
Publication Information
Publication: Journal of Applied Physics
Volume: 35
Issue: 3 (Part 1)
Subject Category
Electronics and Electrical Engineering
Energy Production and Conversion
Report/Patent Number
Distribution Limits