Stuttgart 2012 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 24: Poster: Interaction with VUV and X-ray light
A 24.4: Poster
Mittwoch, 14. März 2012, 16:30–19:00, Poster.V
Traptor - A Multipole Radiofrequency Trap for PIPE, the ion beam facility at PETRA III — Alexander Guda1,2, •Ricarda Laasch1, Stephan Klumpp1, and Michael Martins1 — 1Universität Hamburg, Institut für Experimentalphysik, Hamburg — 2Southern Federal University, Rostov-on-Don, Russia
The ion beam facility PIPE (Photo-Ion-Spectrometer at PETRA III) at the P04 beamline
of the synchrotron storage ring PETRA III, DESY, Hamburg,
is able to prepare mass selected ion beams up to particles with 30.000amu of weight with an mass resolution up to 500 for x-ray absorption studies.
Usually, the more complex and heavy the ion of choice becomes, the more diluted is the prepared ion beam, making it harder or
impossible to detect an absorption or fragmentation signal.
A possible solution is to catch the ions of the prepared beam in an ion trap over a distinct time to enhance the density of particles for the
interaction increasing the signal-to-noise ration significantly [1].
We build an 16-pole segmented radio-frequency ion trap (Traptor) [2] for PIPE. We will show using simulations
with SimIon that the presented concept of Traptor is capable of trapping the range of masses PIPE can prepare as well as
eject produced fragments in the trap after excitation with synchrotron radiation efficiently with a gradient field applied
at the different segments. First tests of the setup in the laboratory will be presented.
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