Line Ratio as a Function of Te/ne

You can find a figure for relation between line intensity ratio and plasma parameters (Te, Ne). The figure was calculated by the formulation I of He CR-Model. The plasma was assumed as ionizing plasma (R0=0).

Enter some parameters at below box and press button.

Gas Temperature (250~500 K) K
Pressure (0.5~50 mTorr) mTorr
Magnetic Field (0~0.1 T) T
21S state population density (1E1~1E9 cm-3) (cm-3)
23S state population density (1E1~1E9 cm-3) (cm-3)