Determination of plasma density and temperature from intensity ratios of HeI emission lines in Divertor Plasma Simulator (DiPS)

초록

The intensity ratios of HeI emission lines are used to determine electron density and temperature in Divertor Plasma Simulator (DiPS). The HeI line ratios are measured by optical emission spectroscopy and are calculated using the collisional-radiative equilibrium (CRE) model. The measured HeI line ratios are 706.52nm/728.13nm for electron temperature and 728.13nm/667.82nm for electron density determination, respectively. The results obtained from the collisional-radiative equilibrium model are crosschecked with those of electrical probe measurement.