ADDITIVE CONVERTER STUDIES
Final rept. Nov 1962-Nov 1963
THERMO ELECTRON CORP WALTHAM MA
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Results of a program aimed at improving the performance of thermionic converters through the use of cesium halide additives are reported. These results show that such improvement is achieved and is due to the reduction of collector work function at each operating condition. The reduction in work function is achieved by a shift in the ratio of collector-to-cesium reservoir temperature ratio at which the minimum collector work function is obtained, thus allowing the converter to be operated closer to the condition of minimum collector work function than is useful in the cesium-only case. It is also reported that corrosion and metallurgical examinations show no evidence of chemical attack upon converter components, which can be attributed to the additives.
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