Abstract
The paper presents the electrical and thermo-mechanical design of single stage beam recovery system for 120GHz, 1MW gyrotron. The electrical study shows that the cylindrical shape single stage beam recovery system enhances the efficiency by 66.26%. The maximum power deposited to collector in depressed collector operation is 0.48MW for electronic efficiency, 30% and 1.44MW for DC electron beam. The thermo-mechanical analysis has been performed to evaluate the water cooling system. The cooling system has capability of accommodating a peak wall loading, 0.9kW/cm2 at flow rate of 1500l/min for safe operating time, 60ms. Further, a high voltage analysis is also carried out to appraise the electric field distribution in the collector.
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