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MO: Molekülphysik
MO 8: Posters Thursday: Dissociation and other Collision Processes
MO 8.13: Poster
Donnerstag, 5. April 2001, 12:30–15:00, AT3
Dissociative Recombination of NO+ — •Fredrik Hellberg1, Stefan Rosen1, Richard Thomas1, Anita Neau1, Mats Larsson1, and Wim van der Zande2 — 1Department of Physics, Stockholm University, P.O Box 6730, S-113 85 Stockholm, Sweden — 2FOM Instituut AMOLF, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
The dissociation dynamics of NO+ were studied using the ion storage ring CRYRING, at the Manne Siegbahn Laboratory in Stockholm. The electron-ion interactions occur when the ions are merged through an electron beam positioned in one section of the ion storage ring. An imaging detector was used to determine the kinetic energy release of the two neutral fragments. The kinetic energies were then used to determine the branching ratios between different energy channels. Similar measurements have been done before at the ASTRID storage ring in Aarhus [1].
Except for the NO+ electronic ground state, a metastable state of NO+ was produced when using a hot filament ion source. The lifetime of the a3Σ+ metastable state can be determined [2].
This experiment was carried out in November 2000, the results are
still preliminary and the analysis is under progress.
1. L. Vejby-Christensen et al., Phys. Rev. A 57, 3627 (1998)
2. A. G. Calamai et al., J. Chem. Phys. 101, 9480 (1994)