Photoproduction of N22+ from threshold to 400 eV

T. Hartman and R. Wehlitz
Phys. Rev. A 92, 013421 – Published 23 July 2015

Abstract

We have measured the relative probability for the production of N22+ using monochromatized synchrotron radiation in the range of 38 to 400 eV. We find the energy dependence of the ratio N22+/N2+ to be very similar to that of the He2+/He+ ratio, which indicates a similarity in the double-photoionization mechanism. This may allow us to predict the relative dication production for other simple molecules, such as O2, without the need to measure an extended photon-energy range. We obtain a threshold for the production of N22+ ions of 42.97(10) eV.

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  • Received 1 July 2015

DOI:https://doi.org/10.1103/PhysRevA.92.013421

©2015 American Physical Society

Authors & Affiliations

T. Hartman and R. Wehlitz*

  • Synchrotron Radiation Center, University of Wisconsin–Madison, Stoughton, Wisconsin 53589, USA

  • *rwehlitz@gmail.com

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Vol. 92, Iss. 1 — July 2015

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