[8a-Z04-1~15] 8.1 Plasma production and diagnostics

△ [8a-Z04-11] Developing and issues an optimization algorithm for diagnostic modeling based on collisional-radiative model and multi-optical emission line analysis

〇Yuya Yamashita¹, Takuya Akiba¹, Toshihide Iwanaga¹, Hidehiko Yamaoka¹, Shuichi Date¹, Hiroshi Akatsuka² (1.TIRI, 2.Tokyo Tech)

Keywords:excitation-kinetic model, collisional-radiative model, electron energy distribution function

In non-equilibrium plasma diagnostics, it is difficult to obtain the general diagnostic model for optical emission spectroscopic measurement. In this work, an optimization algorithm was proposed for plasma diagnostic modeling under plasma conditions set according to the target of measurement. The theoretical diagnostic error was analyzed. It was found that the diagnostic error was increased under the condition where the reduced population density dependence of unknown parameters was shown to be non-monotonic.