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Beam purification techniques for low energy rare isotope beams from a gas cell

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Abstract

A linear gas stopping cell has been implemented at the NSCL as part of the Low Energy Beam and Ion Trap (LEBIT) facility. The gas stopping cell is used to convert relativistic ions into low energy ions suitable for use in ion trap experiments. A common undesired property of such systems is the production of beam contaminants through charge exchange of gas impurities with the He +  ions produced in the stopping process. These contaminants are of particular concern for Penning trap mass spectrometry, where the simultaneous trapping of ions with different masses can cause unwanted shifts in the measured cyclotron frequency of the desired ions. In order to minimize such effects, a multi-stage beam purification system has been implemented at LEBIT.

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Authors and Affiliations

  1. National Superconducting Cyclotron Lab, East Lansing, MI, USA

    P. Schury, G. Bollen, M. Block, D. J. Morrissey, R. Ringle, A. Prinke, J. Savory, S. Schwarz & T. Sun

  2. Department of Physics, Michigan State University, East Lansing, MI, USA

    P. Schury, G. Bollen, R. Ringle, A. Prinke, J. Savory & T. Sun

  3. Department of Chemistry, Michigan State University, East Lansing, MI, USA

    D. J. Morrissey

Authors
  1. P. Schury
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  2. G. Bollen
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  3. M. Block
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  4. D. J. Morrissey
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  5. R. Ringle
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  6. A. Prinke
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  7. J. Savory
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  8. S. Schwarz
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  9. T. Sun
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Correspondence to P. Schury.

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Schury, P., Bollen, G., Block, M. et al. Beam purification techniques for low energy rare isotope beams from a gas cell. Hyperfine Interact 173, 165–170 (2006). https://doi.org/10.1007/s10751-007-9553-0

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  • DOI: https://doi.org/10.1007/s10751-007-9553-0

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