抄録
Transport properties of ions in model gases attemperatures Tg of 50 and 300 [K] are analysed using extended FTImethod with the assumption of isotropic scattering in the center ofmass frame. Single potentials inversely proportional to the powers ofinternuclear separation r as A· r-n which gives the collisionfrequency proportional to the powers of relative speed as v(n-4)/n_rare assumed for n values above 4. Variation of reduced thermalmobilities K0th with Tg in a low range of reduced electric fieldE/N and the E/N dependence of transport properties in a high E/N rangeare mainly discussed in relation with the power values n.