Ion Orbit Loss near Plasma Edge in Tokamak with Diverter Configuration
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概要
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Analytical expression for the condition of ion orbit loss near the plasma edge of tokamak with diverter configuration is derived by use of drift orbit approximation. This simple expression can reproduce the result previously obtained by numerical calculation of ion drift orbit in JET configuration. The effect of radial electric field on ion orbit loss ion is systematically studied by use of this analytical exression. It is shown that, if the initial position of a test ion is outside the torus, the ion orbit loss does not necessarily decrease even by increase of the inward electric field. Ion orbit near X point is analyzed and striking positions of orbit loss ions on the diverter plate is examined.
- 社団法人日本物理学会の論文
- 1994-11-15
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