抄録
The synergistic behaviour in dielectric gas mixtures containing SF6 has been shown from (E/N)lim, that is the E/N at which the net ionization coefficient is equal to zero, and investigated by a Boltzmann equation method. In this paper, the difference between SF6 and nitrogen, and SF6 and c-C4F8 mixtures, in dielectric strength has been explained by the calculated electron energy distributions and the respective sets of electron collision cross-sections. The dielectric characteristics in SF6, N2 and c-C4F8 mixtures has been also calculated and discussed in detail.