Influence of charge exchange on the collection of the laser produced ions

We evaluated influences of charge exchange on ion collection of laser isoto pe separation of uranium. We made a two-dimensional code based on fluid dyn amics taking the charge exchange term into consideration. Parametric study was performed in terms of electric amplitude, ion density, and electron tem perature. In addition to parallel electrode arrangement, calculations were performed for Pi- and M-type arrangements. The ratio of charge exchanged io ns is found to largely depend on the collection time. (C) 2001 American Ins titute of Physics.