The evolution of simple velocity average of ions in gases in time-varying electric fields and static magnetic fields

Kinetic equation and transport properties of large, heavy ions in a gas in any regime in external fields

“…(15), since they can be obtained from previous works for a Rayleigh gas (heavy ions in a light gas) [8,[12][13][14] simply replacing there the friction coefficient of heavy ions in a gas in molecular regime (k R in our present notation) with the effective friction coefficient k F . Here, we limit ourselves to recall that, for l.h.…”