Dresden 2011 – wissenschaftliches Programm
A 26.2: Poster
Donnerstag, 17. März 2011, 16:00–18:30, P2
Few-Body Dynamics studied with the In-Ring Reaction Microscope at the TSR of MPIK — •Katharina Schneider1,2, Daniel Fischer1, Michael Schulz3, Marcelo Ciappina4, Manfred Grieser1, Siegbert Hagmann5, Aditya Kelkar1,2, Tom Kirchner6, Kai-Uwe Kühnel1, Aaron LaForge1, Xincheng Wang1,2, Robert Moshammer1, and Joachim Ullrich1 — 1MPI für Kernphysik, Heidelberg, Germany — 2EMMI at GSI, Darmstadt, Germany — 3Missouri University of Science and Technology, Rolla, USA — 4ICFO, Barcelona, Spain — 5GSI, Darmstadt, Germany — 6York University, Toronto, Canada
Ionization and charge transfer processes in ion-atom collisions are studied fully momentum resolved with a Reaction Microscope, which is implemented into the ion storage ring TSR at MPIK. The low emittance and high intensity of the ion beam allows to obtain even fully differential spectra of processes with small cross sections. By measurements of double ionization of helium, analysed by means of four-particle Dalitz plots, the significance of electron-electron correllation was studied over a broad range of perturbations. For studying Radiative Electron Capture (REC), a detector dedicated to measure low energy X-ray photons is implemented into the Reaction Microscope. REC is the dominant capture process in collisions of atoms and highly charged ions at high velocities. As it can be seen as the inverse process, REC data can provide information of atomic photo-ionization with high-energy photons in the strong-field domain. We aim at first kinematically complete measurements of REC, first results will be presented.