抄録
The present paper reports the effective ionization coefficient α/p(=α/p-η/p) and the total secondary ionization γT for Ar and C3F8 mixtures measured by the steady-state Townsend method for 70<E/p<150V•cm-1 Torr-1, where α/p is the Townsend first ionization coefficient, η/p is the electron attachment coefficient, E is the electric field and p is the gas pressure reduced to 20°C. These gas mixtures are important for competent application in diffuse discharge opening switches. The results show that while α/p increases with E/p, the curve of α/p against ractional C3F8 partial pressure k monotonically decreases with k. It is also found that γT rapidly decreases with k.
