Figure 8
Free-electron fraction, p, and (1 - p)2 as a function of the electric field calculated using equations (14)[link] and (15)[link]. The solid and broken lines indicate the results for d = 4.2 and 8.4 mm. The factor of (1 - p)2 is the ratio of K in equation (6)[link] to that in equation (13)[link], i.e. the rate of change of K.  [article HTML]