Molecular Ion Geometries from Inversion of Coulomb Explosion Imaging Data

Abstract
The inversion of Coulomb explosion imaging (CEI) data is made possible by means of a scheme termed the modified backward integration (MBI) method. This method allows one to analyze CEI data for a single Coulomb explosion event so as to infer the geometry of the relevant molecule or molecular ion. We outline the MBI scheme whose two key features are the use of a hyperspherical coordinate system and the change of the independent variable from time to the hyper-radial coordinate. We also test the method on simulated “experimental” data for idealized model species of known geometry, and then apply it to CEI data actually measured.

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