Development of EC Technology in JAERI

摘要

Recent progress of electron cyclotron (EC) heating and current drive technologies in JAERI is reported. In 170GHz gyrotron development, 0.9MW/9.2sec(efficiency:43%), 0.5MW/30sec (46%), etc, have been demonstrated. As for 110GHz gyrotron, lMW/5sec and 1.2MW/4.1sec were obtained. Using four 110GHz gyrotrons, a 3MW power injection into JT 60U plasma was carried out. In parallel, a launcher design and its development that includes neutron irradiation of the launcher components and a remote steering launcher are underway for ITER application.