intervals of 50°C. The results of these tests revealed the first stage optimized collector temperature. With the cesium reservoir and the collector temperatures at their optimum values, the emitter temperature was varied from 1500 to 1700 K at intervals of 50°C in order to arrive at the optimum emitter temperature. The entire process had to be repeated in a second stage series of optimization tests in order to predict the optimum temperatures more accurately. These iterations are continued to any number of stages till it is not possible to generate optimum temperatures with any more accuracy. Results and Discussions Cesium Reservoir Temperature Optimization All the results of the tests conducted on the Lanthanum Hexaboride diminiode for the first stage optimization of the cesium reservoir temperature are provided in Figs 5-7.
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