Development of a helicon plasma source for the measurement of He* Component in a He0 Beam

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概要

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• A high density plasma source using helicon discharge was designed for the measurement of the population ratio of the metastable state and ground state in a helium neutral beam. The required density of the plasma source was investigated in terms of the rate coefficient relevant to the beam-plasma interaction. The charge-exchange for the metastable state is a dominant process in a beam-energy range of 30-300 keV for the beam attenuation, promising the measurement of the metastable fraction in the helium neutral beam using this plasma source. The first plasma with the electron density of 3.4 × 1012 cm-3 and the electron temperature of 10 eV was successfully produced in argon gas.

• プラズマ・核融合学会の論文

著者

• KOBUCHI Takashi

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• KITAJIMA Sumio

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• SASAO Mamiko

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• OKAMOTO Atsushi

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• IWAZAKI Keisuke

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• ISONO Takehiro

  Tohoku University, Sendai, Miyagi 980-8579, Japan

• ISONO Takehiro

  Tohoku University, Sendai 980-8579, Japan

関連論文

• Charge-Exchanged Beam Measurement by Using a Grid-Biased Faraday Cup
• Development of a helicon plasma source for the measurement of He* Component in a He0 Beam
• Laser Absorption Spectroscopy for Diagnostics of a Neutral Helium Beam

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