Abstract
The results of computer simulations of streamer development and propagation are reported in SF6. The two-dimensional algorithm makes use of flux-corrected transport techniques for the solution of transport equation of charged species under the action of the space-charge electric field. This field is obtained from the solution of Poisson’s equation assuming cylindrical symmetry. The role of attachment, space-charge field, secondary electrons, and the shape and size of the initiating charge have been determined. The results presented are for a uniform applied field-to-gas density ratios (E/N) of 355–435 Td for background neutral ionization densities of 104–106 cm−3. The results in SF6, which is an attaching gas, are compared with a nonattaching gas like nitrogen.
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