  Experimental observations, as well as theoretical predictions, indicate that
the transport of energetic electrons decreases with energy. This reduction in
transport is attributed to finite orbit width (FOW) effects. Using
orbit-following simulations in perturbed tokamak magnetic fields that have an
ideal homogeneous stochastic layer at the edge, we quantify the energy
dependence of energetic electrons transport and confirm previous theoretical
estimates. However, using magnetic configurations characteristic of JET
disruptions, we find no reduction in RE transport at higher energies, which we
attribute to the mode widths being comparable to the minor radius, making the
FOW effects negligible. Instead, the presence of islands and nonuniform
magnetic perturbations are found to be more important. The diffusive-advective
transport coefficients calculated in this work, based on simulations for
electron energies 10 keV -- 100 MeV, can be used in reduced kinetic models to
account for the transport due to the magnetic field perturbations.
