Research on formation of closed flux surfaces in large tokamaks using ECH/ECCD

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289357
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Kyoto University
• Principal Investigator: Maekawa Takashi 京都大学, エネルギー科学研究科, 名誉教授 (20127137)
• Co-Investigator(Kenkyū-buntansha): 田中 仁 京都大学, エネルギー科学研究科, 准教授 (90183863) ; 打田 正樹 京都大学, エネルギー科学研究科, 助教 (90322164)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ECH/ECCD / 非誘導立ち上げ / 大型トカマク

Outline of Final Research Achievements

Improvement in engineering of tokamak reactors would be possible, if a hot plasma with the electron temperature up to a few keV and a hundred kilo amperes of plasma current could be non-inductively built up prior to inductive current drive up. From the view point of reactor engineering, electron cyclotron (EC) heating and current drive (ECH/ECCD) is attractive for the non-inductive build up. We have analyzed experimental results on small LATE device in addition to preliminary results on KSTAR and made some modeling to explore new ECH/ECCD method for generation of a hot plasma. We have found that usual O waves are useless and oblique X waves are appropriate for these startup plasmas.

Free Research Field

プラズマ核融合