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Intensity [counts]

By U. Werner, B. Siegmann and R. Mann

Abstract

In continuation of our previous studies with swift highly charged Xe-ions[1] we analyzed the multiple ionization and fragmentation of N2O in collisions with 3.6 MeV/u Au50+-ions. The experiment has been performed at the UNILAC accelerator at the GSI using a position- and timesensitive multi-particle detector [2] which allows the coincident measurement of the momenta of correlated fragment ions. Of special interest are the “Coulomb-explosion” processes, as e.g. N2O − → Nq+ +NO+ or N2O −→ N + +N+ +O+, where the mutual Coulomb repulsion of the fragment ions plays an important role in the fragmentation dynamics. If all fragments from a particular fragmentation are detected, a kinematically complete study of the molecular break-up process is possible [3, 4] and the kinetic energy release as well as angular correlations can be derived for each individual event. and O + ions roughly emerge with similar momenta in opposite directions (Fig. 1)

Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.161.7525
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