Monte Carlo simulation of electron swarm parameters in c-C4F8

Perfluorocyclobutane (c-C4F8) is one of the most promising gases to be used in gas mixtures, which are the candidates to substitute for SF6 gas as high dielectric strength insulators with a reduced potential for global warming. The set of initial collision cross-sections are assembled and modified. The motion of electrons in c-C4F8 in uniform electric fields is simulated using Monte Carlo method. Also the density-normalized ionization coefficients alpha/N, attachment coefficients eta/N, the effective ionization coefficients (alpha - eta)/N, drift velocity (V-e) and the electron longitudinal diffusion coefficient (NDL) are calculated for the range of density-reduced electric field strength, 300 <= E/N <= 1000 Td. The electron swarm parameters of simulation are compared with experimental data and other results of simulation, which obtain a good agreement. However, further calculations and measurements for c-C4F8, such as eta/N and NDL are required.