Measurements of Excited-Atom Density in a Freely Expanding Plasma by Optical Absorption Technique

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  • 吸光法による自由噴流プラズマの励起原子密度測定
  • キュウコウホウ ニヨル ジユウ フンリュウ プラズマ ノ レイキ ゲンシ ミツ

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By means of optical absorption on the lines AI8103 and AI8014, population densities of 4s[3/2]1 (resonance state) and 4s[3/2]2 (metastable state) were measured in a freely expanding argon plasma. A difference between the axial distributions of the population densities of these states was observed. It was confirmed that these states were not populated in according to the SAHA equilibrium with free electrons and to the BOLTZMANN equilibrium with the levels 5p and

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