In
capacitive-coupled RF discharge, Barton et al.
[22] reported that at 1.33 Pa pressure, the total ion
energy flux was two times the VUV energy flux
(ion energy flux 4mWcm2 and VUV photon
energy flux 2mWcm2), whereas at the increase
in the pressure up to 13 Pa the ion energy flux
remains only half of the total VUV energy flux
(ion energy flux 2mWcm2 and VUV photon
energy flux 5mWcm2) for 10W RF power