Electrical and thermo-mechanical analysis of beam recovery system for megawatt power gyrotron |
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Authors: | Ranajoy Bhattacharya Naveen Kr Sahu Arani Ali Khan Hasina Khatun AK Sinha |
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Affiliation: | 1. Central Electronics Engineering Research Institute (CEERI), Pilani, Rajasthan 333031, India;2. Department of Electronics & Communication, Indian Institute of Technology, Kharagpur, India |
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Abstract: | The paper presents the electrical and thermo-mechanical design of single stage beam recovery system for 120 GHz, 1 MW 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 0.48 MW for electronic efficiency, 30% and 1.44 MW 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, 0.9 kW/cm2 at flow rate of 1500 l/min for safe operating time, 60 ms. Further, a high voltage analysis is also carried out to appraise the electric field distribution in the collector. |
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Keywords: | Beam recovery system Gyrotron Thermo-mechanical analysis Peak wall loading |
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