Master of Science / Department of Physics / Itzhak Ben-Itzhak / Collisions between simple diatomic molecular ions and target atoms have previously been
limited to studying a subset of reaction channels for a given experiment, or, for cases where
all reaction channels involved were measured, only the cross sections have been reported in
literature. Experimentalists are faced with the challenge of improving their techniques for
studying these collisions in order to gain further physical insight into the processes which
occur. Our group has made progress in studying the molecular dissociation channels from the
collisions via a coincidence three-dimensional momentum imaging technique. This technique
allows us to measure all reaction channels involved simultaneously, while separating the
channels from each other. By re-design of the experimental apparatus, i.e. changing the
target from a gas cell to an open geometry jet, we have gained the ability to measure recoil
ions produced in the collision in addition to the molecular fragments. Furthermore, we can
also study collisions where the molecular projectile does not dissociate as long as it scatters
to large angles. Results from the collision cell setup will be shown and discussed as well
as first results from the jet setup. This work is a contribution to a larger project, and the
emphasis for this stage will be placed on the development of the experimental technique as
well as improvements for the future of the project.
| Identifer | oai:union.ndltd.org:KSU/oai:krex.k-state.edu:2097/3518 |
| Date | January 1900 |
| Creators | Johnson, Nora Gerline |
| Publisher | Kansas State University |
| Source Sets | K-State Research Exchange |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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