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Prospects of ion-mobility measurements in superheavy element research

  • Ion Chemical Reactions and Ion Mobility in Buffer Gases
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Abstract.

The element specific electron configuration of ions directly reflects the two quantum mechanical observables 〈r2〉 and rmax, which denote the r2 expectation value of the electron density and the principle maximum of the wave function of the outermost electron orbital, respectively. Thus, the determination of these observables may present a new access to element identification of single superheavy nuclides. In this paper, we discuss how these observables are related to ionic radii deduced from ion-mobility data using the most simple hard sphere model and semi-empirical (n,6,4) model potentials for the interaction of heavy ions with noble gases. A concept for a high resolution ion-mobility spectrometer is presented. Optimum extraction efficiency of the ions will be achieved by decoupling the ion motion from the electric field drift by the friction force of the suitably shaped gas flow at the exit nozzle.

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Authors and Affiliations

  1. Department für Physik, Ludwig-Maximilians-Universität München, 85748, Garching, Germany

    M. Sewtz, M. Laatiaoui, K. Schmid & D. Habs

Authors
  1. M. Sewtz
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  2. M. Laatiaoui
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  3. K. Schmid
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  4. D. Habs
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Correspondence to M. Sewtz.

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Sewtz, M., Laatiaoui, M., Schmid, K. et al. Prospects of ion-mobility measurements in superheavy element research. Eur. Phys. J. D 45, 139–145 (2007). https://doi.org/10.1140/epjd/e2007-00179-4

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  • DOI: https://doi.org/10.1140/epjd/e2007-00179-4

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