Accession Number:

AD0425895

Title:

THERMIONIC EMITTER MATERIALS RESEARCH PROGRAM.

Descriptive Note:

Annual technical summary rept. no. 2, 1 July 6230 Sep 63,

Corporate Author:

THERMO ELECTRON CORP WALTHAM MA

Personal Author(s):

Report Date:

1963-09-30

Pagination or Media Count:

1.0

Abstract:

The performance, over a wide range of parameters, of rhenium and iridium as thermionic emitter materials opposite molybdenum collectors, is reported. A study of molybednum-collector work function opposite three different emitter materials is reported, and a correlation against collector-to-reservoir temperature ratio is shown to exist. Emitter work functions are reported, and a correlation against emitter-toreservoir temperature ratio is demonstrated and shown to correspond to Rasors theoretical predictions. A correlation between converter internal voltage loss and the product of cesium pressure and interelectrode spacing is demonstrated, and the relationship between this factor and the optimum performance maps is derived. The usefulness of the data and correlations to the theoretician and the hardware designer are delineated. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE