@misc{oai:repo.qst.go.jp:00067123,
 author = {Ikeda, Ryosuke and Oda, Yasuhisa and Kajiwara, Ken and Kobayashi, Takayuki and Terakado, Masayuki and Takahashi, Koji and Moriyama, Shinichi and Sakamoto, Keishi and 池田 亮介 and 小田 靖久 and 梶原 健 and 小林 貴之 and 寺門 正之 and 高橋 幸司 and 森山 伸一 and 坂本 慶司},
 month = {Sep},
 note = {The QST as Japan domestic agency (JADA) procures 8 sets of 170 GHz, 1 MW gyrotrons for ITER EC H&CD. Two ITER gyrotrons (#1 and #2) were manufactured. Performance tests of ITER gyrotrons have being carried out. In short pulse experiments (~ 1ms), the output power of 1 MW for both gyrotrons.  Long pulse experiments for one of the ITER gyrotron are underway. The output power of 1.06 MW for 200 s has been achieved. Here, the beam voltage, CPD voltage and beam current were 80.4 kV, 33.7 kV and 44.6 A, respectively. The total efficiency reached 50.7 % and the oscillation efficiency was 29.5 %. Full-power modulation of 5 kHz has being performed. Up to now, the 5 kHz modulation at 0.8 MW-level was achieved for 60 s., 2018 US-EU-JAPAN RF HEATING TECHNOLOGY WORKSHOP},
 title = {Experiments of Performance Demonstration of ITER Gyrotron in QST},
 year = {2018}
}