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Published October 1, 1928 | public
Journal Article Open

Systematic variations of the constant A in thermionic emission

Abstract

Recent measurements(1) on the thermionic emission from a platinum surface during outgassing have brought to the attention of the writer an empirical relation between the thermionic constants for a metallic surface which was discovered by Richardson(2) for tungsten and platinum in 1915, but which has apparently been completely neglected in formulating the various theories of the emission process.

Additional Information

Copyright © 1928 by the National Academy of Sciences. Communicated August 27, 1928.

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August 21, 2023
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