Figure 7
Normalized spatio-temporal plots of the measured emission of the 706.5 nm He I line (a) and normalized (to the maximum value of (b)) spatio-temporal plots of the electron-impact excitation rate obt
He excitation rate
Figure 6
Measured normalized spatio-temporal plots of the emission of the 706.5 nm He I line (top row) and spatio-temporal plots of the electron-impact excitation rate from the He I ground state into the He
Figure 5
Measured normalized spatio-temporal plots of the emission of the 706.5 nm He I line (top row) and of the computed electron-impact excitation rate from the He I ground state into the He I (3s)3S1-st