Successive magnifications of the escape time plot. (a) The time it takes the ionized electron to strike the detector is plotted as a function of the initial launch angle with scaled energy ɛ = −1.3, F = 19 V/cm. Every point on the graph represents one escape trajectory. (b) Magnification of assigned angle interval between 1.4865 and 1.51737 in panel (a). (c) Magnification of assigned angle interval between 1.4946 and 1.50175 in panel (b).