Hannover 2013 – scientific programme

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MO: Fachverband Molekülphysik

MO 27: Poster 3: Collisions, Electronic Spectroscopy, Energy Transfer, Quantum Chemistry, Molecular Dynamics, Photochemistry, Spectroscopy in He-Droplets

MO 27.16: Poster

Thursday, March 21, 2013, 16:00–18:30, Empore Lichthof

Optimization of a langmuir-taylor detector for reactive scattering products — •Ingo Hügel, Matthias Strebel, Frank Stienkemeier, and Marcel Mudrich — Physikalisches Institut, Universität Freiburg, Hermann-Herder-Str.3, D-79104 Freiburg im Breisgau

In order to investigate reactive and non reactive collisions between atoms and molecules at very low scattering energies, a magneto-optical trap (MOT) for ultracold Li atoms is combined with a rotating nozzle setup for producing slow beams of cold molecules. We use surface ionisation, langmuir-taylor (LT) detector, to sensitively detect atomic and molecular collision products. Different materials (rhenium, platinum) for the hot ribbon are characterized using beams of Li and LiF. While Li atoms can be detected with a high selectivity, no such conditions can be found for the LiF scattering product. Therefore we set up a new combined LT and laser-ionisation time of flight detector.