Braun, AndreasDrabbels, Marcel2006-02-102006-02-102006-02-10200510.1063/1.2130941https://infoscience.epfl.ch/handle/20.500.14299/222371WOS:0002335698000047762We present a simple and robust procedure that allows extracting with high fidelity speed distributions from ion images that contain a large background contribution. The procedure requires no detailed knowledge about the background and is conveniently applied after performing the inverse Abel transform that reconstructs the three-dimensional velocity distribution from a recorded image.text::journal::journal article::research article