<RESEARCH REPORT>RF CURRENT COMPONENT IN THE RESONANCE PROBE
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概要
- 論文の詳細を見る
The resonance probe is investigated in a quiescent low density plasma in mercury vapor dischange. A quiescent plasma is produced by back-diffusion-type mercury discharges. The emphasis is on the comparison between the rf component and the dc component of the current to the probe. It is confirmed that the rf component shows its maximum at the frequency, where the dc current component also shows a resonance peak. The difference between the characteristics of the two components is that the rf current shows a minimum at a frequency higher than the resonance and in much higher frequency range the component goes to increase, while the dc current component does only decrease in higher frequency range beyond the resonance. The resonance in the dc current was believed to appear at the electron plasma frequency. The present experimental results suggest that the resonance in the dc, or rf current may be not at the electron plasma frequency. The real electron plasma frequency may be close to the frequency where the rf current shows its minimum. The results seem to be consistent with other experiments. The resonance peak will be related to the sheath, that is, when we express sheath-plasma system into the following equivalent circuit for electrons, where the resonance will be understood as a series resonance and the minimum in the rf current as a parallel resonance. It will be also seen from the circuit that the dc current will become maximum at the series resonance, when the voltage across the sheath capacitance becomes maximum.
- 核融合科学研究所の論文
著者
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Ikegami H.
Research Information Center Institute Of Plasma Physics Nagoya University
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Takayama K.
Research Information Center Institute Of Plasma Physics Nagoya University:dep. Of Appl. Phys. And Ch
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Fujita J.
Research Information Center Institute Of Plasma Physics Nagoya University
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Ikegami H.
Information Center Institute Of Plasma Physics Nagoya University
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Uramoto J.
Research Information center, Institute of Plasma Physics, Nagoya University
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Uramoto J.
Information Center, Institute of Plasma Physics, Nagoya University
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Uramoto J.
Information Center Institute Of Plasma Physics Nagoya University
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Uramoto J.
Research Information Center Institute Of Plasma Physics Nagoya University
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Ikegami H.
Research Information Center Institute Of Plasma Physice Nagoya University
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