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Report No.

Repetitive gyrotron operation for ITER

Kajiwara, Ken; Oda, Yasuhisa; Kasugai, Atsushi; Takahashi, Koji; Sakamoto, Keishi; Darbos, C.*; Henderson, M. A.*

A repetitive operation corresponding to ITER is performed 8 successive days. The pulse width is 600 sec and the interval is 20-30 min. The output power is 800 kW. The electrical efficiency including depressed collector is 53-57%. The total shots are 88 shots. The successful 600 s shots are 72 shots. Therefore, the gyrotron reliability is measured as 82%. Shot by shot stability of the voltage, current, power and frequency is measured. The successful of the stable 72 shots shows that the present gyrotron system can be utilized for ITER operation.



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Category:Nuclear Science & Technology



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