@misc{oai:repo.qst.go.jp:00074883,
 author = {小田, 靖久 and 池田, 亮介 and 中井, 拓 and 梶原, 健 and 小林, 貴之 and 高橋, 幸司 and 坂本, 慶司 and 森山, 伸一 and Darbos, Caroline and Oda, Yasuhisa and Ikeda, Ryosuke and Nakai, Taku and Kajiwara, Ken and Kobayashi, Takayuki and Takahashi, Koji and Sakamoto, Keishi and Moriyama, Shinichi},
 month = {Oct},
 note = {This paper presents a summary of recent progress pertaining to the manufacturing and inspection of ITER gyrotrons and their operation system in QST. Major achievements are as follows: (i) The final design of ITER gyrotron was accomplished and manufacturing of 2 ITER gyrotrons was finished. Then their factory acceptance test (FAT) in QST has started with ITER relevant high voltage power supply configuration. The 1st ITER gyrotron has achieved 1 MW output power for 10 s pulse and 200 kW operation for 300 s which suggests thermally stable condition and sufficient cooling performance for 1 MW long pulse operation; (ii) The coupling function of gyrotron power into the transmission line (TL) waveguide was improved and calculation result of coupling efficiency was increased as high as 96.9% for the fundamental mode purity in waveguide inlet which could produce the sufficient LP01 mode purity in whole EC H&CD system. These results lead to success of ITER EC H&CD system construction toward first plasma., 27th IAEA Fusion Energy Conference},
 title = {Completion of 1st ITER gyrotron manufacturing and 1 MW test result},
 year = {2018}
}