A uniform semiclassical calculation of the rings in photodetachment microscope

We describe a uniform semiclassical theory for the spatial distribution of the photodetached electron of H- in the presence of a static electric held. In this theory we propagate the photodetached electron wavefunction using a mixed position and momentum coordinate method to large distance where a u niform approximation to the electron flux distribution is calculated. Detai ls are given for the propagation of the mixed coordinate wavefunction with cylindric symmetry and the transformation between configuration space wavef unction and the mixed position and momentum wavefunction.