Determination of Pitch Angles of Magnetic Field Lines in Tokamak with Obliquely Injected Helium Beam
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概要
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The pitch angles of magnetic field lines or q-profile in a high-density tokamak can be determined by the new method proposed here. Blobs of monoenergetic helium beam with different velocities are injected into the tokamak obliquely to the toroidal direction on a poloidal plane χ. Produced He^+ ions move nearly along magnetic field lines, and their front emitting a Hell line crosses a different sight plane and forms a curve on it. An optically measured shift of the curve from χ leads to a distribution of pitch angle after correction for the perpendicular drift motion of He^+ ions, using the velocity dependence of the drift.
- 社団法人応用物理学会の論文
- 1987-11-20
著者
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Mohri Akihiro
Institute Of Plasma Physics Nagoya University
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Mohri Akihiro
Instilute Of Plasma Physics Nagoya University
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