An iterative procedure for the inversion of two-dimensional ion/photoelectron imaging experiments

We present an iterative method for the extraction of velocity and angular d istributions from two-dimensional (2D) ion/photoelectron imaging experiment s. This method is based on the close relationship which exists between the initial 3D angular and velocity distribution and the measured 2D angular an d radial distributions, and gives significantly better results than other i nversion procedures which are commonly used today. Particularly, the proced ure gets rid of the center-line noise which is one of the main artifacts in many current ion/photoelectron imaging experiments. (C) 2001 American Inst itute of Physics.