Ohmic Ignition of Neo-Alcator Tokamak with Adiabatic Compression
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概要
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Ohmic ignition condition on axis of the DT tokamak plasma heated by minor radius and major radius adiabatic compression is studied assuming parabolic profiles for plasma parameters, elliptic plasma cross section, and Neo-Alcator confinement scaling.It is noticeable that magnetic compression reduces the necessary total plasma current for Ohmic ignition device.Typically in compact ignition tokamak of the minor radius of 0.47m, major radius of 1.5m and on-axis toroidal field of 20T, the plasma current of 6.8MA is sufficient for compression plasma, while that of 11.7MA is for no compression plasma. Another example with larger major radius is also described.In such a device the large flux swing of Ohmic transformer is available for long burn.Application of magnetic compression saves the flux swing and thereby extends the burn time.
著者
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Inoue Nobuyuki
Department Of Quantum Engineering And Systems Science Faculty Of Engineering University Of Tokyo
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Inoue Nobuyuki
Department Of Cardiovascular Surgery Kitasato University School Of Medicine
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Ogawa Yuichi
Department Of Materials Technology Faculty Of Engineering Chiba University
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