Stuttgart 2012 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 8: Ion Trap and FT-ICR-MS, Molecules, Clusters and Reactions
MS 8.6: Vortrag
Donnerstag, 15. März 2012, 15:45–16:00, V57.06
One- and two-pulse quadrupolar excitation schemes of the ion motion in a Penning trap investigated with FT-ICR detection — •Michael Heck1, Klaus Blaum1, R.Burcu Cakirli1,2, Hendrik Golzke1,3, Martin Kretzschmar4, Gerrit Marx5, Lutz Schweikhard6, Stefan Stahl7, and Marta Ubieto-Diaz1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2Department of Physics, University of Istanbul, Istanbul, Turkey — 3Karlsruher Institut für Technologie, Karlsruhe, Germany — 4Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany — 5Institute of Physics, Ernst-Moritz-Arndt-University Greifswald, 17487 Greifswald, Germany — 6Universidad de Granada, 18071, Granada, Spain — 7Stahl-Electronics, Kellerweg 23, 67582 Mettenheim, Germany
Penning traps are widely used as storage devices for charged particles in the fields of analytical and precision mass spectrometry. The coupling of the radial motional modes is achieved by using azimuthal quadrupolar radio frequency (rf) fields. In this work we studied the interconversion of radial modes by applying one- and two-pulse (Ramsey) quadrupolar rf-fields. Dipolar-detection of the Fourier transform ion cyclotron resonance (FT-ICR) signal at the modified cyclotron frequency has been studied as a function of the interaction parameters such as excitation frequency, amplitude and duration and is compared with the theoretical results.