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Inhomogeneous effect on coil-to-plasma coupling in an ion cyclotron wave

H. Toyama, K. Matsuura1973年被引用 5Nuclear FusionIF 3出版社

The dependence of the absorbed RF-power on the diameter of the plasma column was examined experimentally in the density region of 1011 cm−3 to 2 × 1012 cm−3, using a QP-machine. Setting the absorbed RF-power P proportional to dγ (d is the diameter of the plasma column), the calculation for a uniform plasma column yields γ = 4. However, the experimental value of γ is less than 2. It is shown that the effect of an inhomogeneous density profile makes γ less than 2 and the density profile is important in the efficient heating of a plasma.

日本語訳

吸収されたRF電力のプラズマ柱直径への依存性を、Qマシンを用いて密度領域10¹¹ cm⁻³から2×10¹² cm⁻³において実験的に調べた。吸収されたRF電力PをP∝d^γ(dはプラズマ柱の直径)と設定すると、一様なプラズマ柱に対する計算ではγ=4が得られる。しかし、実験値はγ<2である。不均一な密度分布の効果がγを2未満にすることを示し、密度分布がプラズマの効率的な加熱において重要であることを明らかにした。

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Cyclotron wave
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