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International Journal of Mass Spectrometry 314 (2012) 6-12
A study of octupolar excitation for mass-selective centering in Penning traps
M. Rosenbusch, C. Bohm, C. Borgmann, M. Breitenfeldt, A. Herlert, M. Kowalska, S. Kreim, G. Marx, S. Naimi1, D. Neidherr, R. Schneider, L. Schweikhard

Octupolar excitation has been investigated with respect to mass-selective ion centering in buffer-gas filled Penning traps for the isolation of an ion species of interest. To this end, off-line test measurements have been performed with the preparation Penning trap of the mass spectrometer ISOLTRAP located at ISOLDE/CERN including a comparison with the conventional quadrupolar excitation. The experimental results are compared to numerical simulations of ions under influence of quadrupolar and octupolar excitation. (c) 2012 Elsevier B.V. All rights reserved.
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Physique/Physique Nucléaire Expérimentale
Penning trap – Octupolar excitation – Mass-selective ion centering – ION-CYCLOTRON-RESONANCE – SPECTROMETRY – MOTION – AXIALIZATION – ACCURACY – SHIPTRAP – JYFLTRAP