2009 Fiscal Year Final Research Report
Effects of electrostatic field and flow in ECH spherical tokamak
| Project/Area Number |
20760578
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
YOSHINAGA Tomokazu National Institute for Fusion Science, 大型ヘリカル研究部, 研究員 (30467899)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 周辺プラズマ / 球状トカマク / 非誘導電流立ち上げ |
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| Research Abstract |
Non-inductive plasma current start-up experiment by electron-cyclotron-heating and current-drive (ECH/ECCD) using microwaves has been conducted in the QUEST device, which is the largest spherical tokamak device in Japan. Plasma current reached ~ 10kA and was sustained for 0.8 sec during the microwave injection at 8.2GHz, 35kW. The directive Langmuir probe measurement suggested the isotropic distribution of electrons at ~ 100eV in the velocity space, which is considered to drive and sustain the plasma current
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