Berlin 2001 – scientific programme
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A: Atomphysik
A 12: Posters Thursday (Ion/Atom/Molecule/Surface Scattering)
A 12.27: Poster
Thursday, April 5, 2001, 12:30–15:00, AT3
Cross sections for individual channels in H2+ - H2 collision over an energy range 20 to 100 keV identified through coincidence methods — •Mansukh Shah1, C McGrath1, P C E McCartney1, and W J McConkey2 — 1Department of Pure and Applied Physics, Queen’s University, Belfast BT7 1NN, UK — 2School of Physical Sciences, University of Windsor, Ontario, Canada N9B 3P4
Knowledge of the cross sections of the individual channels for the simplest molecular ion-molecule collision system (H2+ - H2) is of considerable importance in the context of it’s fundamental aspect and the understanding of the astrophysical and laboratory plasmas. We have used a crossed beam set-up of H2+ ions in collision with a H2 target to measure cross sections of many individual processes resulting from ionisation and electron capture collisions, including fragmentation channels. Time of flight techniques were used to identify target products and a Si barrier detector was used to distinguish one or two fast protons formed in projectile break-up collisions.