DocumentCode :
1014519
Title :
The effects of initial electron velocities and space charge in secondary emission
Author :
Hare, M.D.
Author_Institution :
Stanford University, Stanford, Calif.
Volume :
6
Issue :
4
fYear :
1959
Firstpage :
397
Lastpage :
404
Abstract :
This paper treats a secondary emitter as a fixed-temperature thermionic emitter with an equivalent work function which depends for its value upon the current density of the incident primary electrons. This permits Langmuir´s treatment of the parallel-plane thermionic diode to be applied to secondary emission. The resulting equations account quantitatively for observed secondary-emission effects caused by space charge and initial electron velocities. The paper concludes with a discussion of three specific electron devices in which secondary-emission effects due to space-charge and initial electron velocity are important.
Keywords :
Cathodes; Current density; Diodes; Electrodes; Electron devices; Electron emission; Electron tubes; Equations; Knee; Space charge; Temperature dependence; Thermionic emission; Voltage;
fLanguage :
English
Journal_Title :
Electron Devices, IRE Transactions on
Publisher :
ieee
ISSN :
0096-2430
Type :
jour
DOI :
10.1109/T-ED.1959.14570
Filename :
1472613
Link To Document :
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