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An NO2+ molecular ion beam, produced by electron cyclotron resonance source (ECR), is crossed with a laser beam. The laser field causes the NO2+ ions to dissociate into charged fragments. Voltages applied to the spectrometer rings create an electric field, which causes the fragments to accelerate towards a time- and position-sensitive detector.This detector allows us to make kinematically complete measurements; we can extract information about the 3-D momentum vectors and kinetic energy of the fragments.  From this information, we hope to be able to deduce the dissociation mechanisms of NO2+.