(a) Experimental data for the space- and time-averaged helium metastable density as a function of the peak-to-peak value of the driving voltage waveform. (b) Simulation result for the ratio of the space- and time-averaged electron impact excitation rate from the ground state into the He-I (3s)3S1 level and the space- and time-averaged helium metastable density as a function of the peak to-peak value of the driving voltage waveform, normalized by this ratio at a peak-to-peak voltage of 500 V. The base frequency is f_0 = 13.56 MHz and N = 4

Experimental data are marked as exp

Simulation data are marked as sim

[V]

(Figure10a): Sim of Space- and time-averaged helium metastable densities and electron impact excitation [cm^{-3}]

(Figure10b): Sim of Ratio of the normalized space- and time-averaged excitation rate and the helium metastable density [Norm. Exc. Rate / n*]
(Figure10b_fit): fit for the normalized space- and time-averaged excitation rate and the helium metastable density [Norm. Exc. Rate / n*]

*6* files in this archive

- Figure10a.csv
- __MACOSX/._Figure10a.csv
- Figure10b_fit.csv
- __MACOSX/._Figure10b_fit.csv
- Figure10b.csv
- __MACOSX/._Figure10b.csv