インバータ式高周波電源を用いたプラズマ加熱時の加熱特性

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タイトル別名
  • Characteristic Performance of Radio-Frequency (RF) Plasma Heating Using Inverter RF Power Supplies
  • インバータシキ コウシュウハ デンゲン オ モチイタ プラズマ カネツジ ノ カネツ トクセイ
  • Characteristic performance of radio‐frequency (RF) plasma heating using inverter RF power supplies

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説明

High heat flux plasmas are produced by high power(_??_14kW) ICRF heating using inverter power supplies in the linear divertor simulator NAGDIS-II. The power flow of radiated rf power is investigated by a calorimetric method. Conventional power calculation using antenna voltage and current gives that about 70% of the rf power is radiated into the plasma. But increase of the heat load at the target and anode is about 10% of the rf power. Through this experiment, we find that about half of the rf power is lost at the antenna surface through the formation of rf induced sheath. And about 30% of the power is lost into the vacuum vessel through the charge exchange and elastic collision of ions with neutrals.

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