Collisional-Radiative Model for Helium-Like Ions : Application to Intermediate-Density Plasmas

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概要

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• To interpret the emission-line intensities from various plasmas, a collisional-radiative-model program has been constructed for helium-like ions. In this model, excitation, de-excitation, ionization and three-body recombination by electron collisions, spontaneous transition, radiative recombination, and dielectronic recombination have been included. For these processes most reliable rate coefficients, experimental or theoretical, have been employed. A detailed account is given of the program along with the review of the rate coefficients adopted. As an example of its application measured line intensities reported on theta-pinch plasmas are analysed; for oxygen the three sets of experiment are in consistent with the present calculation. For the case of carbon, however, the intensity ratio can not be interpreted consistently on the assumption of the ionizing plasma model. Rather, it is strongly suggested that the plasma has a significant contribution from the recombining plasma component.

• 核融合科学研究所の論文

著者

• Kato Takako

  Reserch Information Center Institute Of Plasma Physics Nagoya University

• Fujimoto Takashi

  Reserch Information Center, Institute of Plasma Physics, Nagoya University

• Fujimoto Takashi

  Reserch Information Center Institute Of Plasma Physics Nagoya University:(present Address)department

関連論文

• Collisional-Radiative Model for Helium-Like Ions : Application to Intermediate-Density Plasmas

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