title: Velocity map imaging with non-uniform detection: Quantitative molecular axis alignment measurements via Coulomb explosion imaging.
abstract: We present a method for inverting charged particle velocity map images which incorporates a non-uniform detection function. This method is applied to the specific case of extracting molecular axis alignment from Coulomb explosion imaging probes in which the probe itself has a dependence on molecular orientation which often removes cylindrical symmetry from the experiment and prevents the use of standard inversion techniques for the recovery of the molecular axis distribution. By incorporating the known detection function, it is possible to remove the angular bias of the Coulomb explosion probe process and invert the image to allow quantitative measurement of the degree of molecular axis alignment.
authors.affiliation: Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: Jonathan G
authors.initials: JG
authors.lastname: Underwood
authors.affiliation: Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: I
authors.initials: I
authors.lastname: Procino
authors.affiliation: Department of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark.
authors.forename: L
authors.initials: L
authors.lastname: Christiansen
authors.affiliation: Department of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark.
authors.forename: J
authors.initials: J
authors.lastname: Maurer
authors.affiliation: Department of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark.
authors.forename: H
authors.initials: H
authors.lastname: Stapelfeldt