抄録
Pulsed experiment is simulated by Monte Carlo simulation for two kinds of constant collision frequency model gases, and longitudinal diffusion coefficient DL', which is measured in “Pulse experiment”, is deduced. DL' is compared with the diffusion coefficient DL, obtained by the simulation of Time-of-Flight experiment. It is found that DL' does not necessarily agree with DL, and that the difference between DL' and DL tends to increase when the values of E/N and effective ionisation coefficient increase.
