Fig. 8

a-d Dependence of a velocity υ′_z of a relativistic electron on the phase of an electric field, based on Eq. (12). The figures are drawn under the same physical conditions with for Eq. (27): an initial velocity \( {z}_0=\left|\widehat{z}\kern0.5em \left(-0.31\times {10}^8\right)\right| \) m/s at time t₀, E (t) = \( -\widehat{z}\ 400\ cos\omega t\kern0.5em \mathrm{V}/\mathrm{m}, \) \( {\omega}_c=\left|\widehat{y}\ q\mathbf{B}/{m}_e\right|{\left(1-{z}_0^2/{c}^{"}\right)}^{1/2}=\left|\widehat{y}\kern0.50em 3.5\times {10}^{11}\right| \) sec⁻¹, ω_c/ω =1.0001. The flight time t = t₀~t₀ + (2π/ω_c) n = t₀ + 3 × 10⁻⁸ sec when n = 1670. The dots mark the last velocity points after the flight