Spreading times of ion-bunches in the Cryogenic Trap forFast ion beams

Breitenfeldt, Christian; Froese, Michael Wayne; Blaum, Klaus; George, Sebastian; Grieser, Manfred; Lange, Michael; Menk, Sebastian; Repnow, Roland; Schwalm, Dirk; Schweikhard, L.; von Hahn, Robert; Wolf, Andreas

doi:10.1016/j.ijms.2015.11.011

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Spreading times of ion-bunches in the Cryogenic Trap forFast ion beams

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Breitenfeldt, Christian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut für Physik, Ernst-Moritz-Arndt Universität Greifswald;

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Froese, Michael Wayne
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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George, Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Grieser, Manfred
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Lange, Michael
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Menk, Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Repnow, Roland
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Schwalm, Dirk
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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von Hahn, Robert
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Wolf, Andreas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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http://www.sciencedirect.com/science/article/pii/S1387380615004030
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Citation

Breitenfeldt, C., Froese, M. W., Blaum, K., George, S., Grieser, M., Lange, M., et al. (2015). Spreading times of ion-bunches in the Cryogenic Trap forFast ion beams. International Journal of Mass Spectrometry, 396, 1-4. doi:10.1016/j.ijms.2015.11.011.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-C81E-4

Abstract

The decay of ion-bunches stored in the self-bunching mode of an electrostatic ion beam trap (EIBT) has been investigated as a function of the number of injected ions with the Cryogenic Trap for Fast ion beams (CTF) located at the Max Planck Institute for Nuclear Physics in Heidelberg. By use of the pickup-electrode signal the dependence of the characteristic bunch-spreading time τ, i.e. the time in which the bunch width increases by one third, on the number of injected ions is determined. For F⁻ ions with an initial bunch length of 2.7 μs the spreading times are observed to increase approximately linearly with the number of injected ions and to reach a constant value of ∼10 s for ion numbers larger than 4 × 10⁵.