SAMOP 2023 – scientific programme
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MO: Fachverband Molekülphysik
MO 20: Poster III
MO 20.18: Poster
Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof
TrapREMI: A reaction microscope inside an electrostatic ion beam trap — Frans Schotsch1, •Ilja Zebergs1, Sven Augustin1,2, Hannes Lindenblatt1, Ludwig Hoibl3, Denis Djendjur3, Claus Dieter Schröter1, Thomas Pfeifer1, and Robert Moshammer1 — 1Max-Planck-Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Baden-Württemberg, Germany — 2Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland — 3Department of Physics and Astronomy, Ruprecht-Karls University, 69120 Heidelberg, Baden-Württemberg, Germany
A novel setup has been developed to investigate the reaction dynamics of (molecular) ions with a variety of projectiles in kinematically complete crossed-beam experiments. The setup combines an electrostatic ion beam trap (EIBT) with a reaction microscope (REMI).
The EIBT stores ions in oscillatory motion at several keV and allows further preparation e.g. cooling, relaxation, pulsing of the beam, mass selection. Reactions are induced by crossing the ion beam with another beam in the field-free region of the EIBT, where the REMI is located. The REMI, oriented along the target beam axis, allows for detection of all fragments in coincidence, including neutral particles, and reconstruction of their 3D-momenta.
During first REMI tests a laser pulse was used as the projectile to induce photodissociation in molecular ions. Currently a gas jet was assembled to provide an atomic/molecular beam and first simple ion-atom/molecule collision experiments are conducted.