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The LEBIT facility at MSU

High-precision mass measurements at a fragmentation facility

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Abstract

The low-energy beam and ion trap facility LEBIT at the NSCL at MSU has demonstrated that rare isotopes produced by fast-beam fragmentation can be slowed down and prepared such that precision experiments with low-energy beams are possible. For this purpose high-pressure gas-stopping is employed combined with advanced ion manipulation techniques. Penning trap mass measurements on short-lived rare isotopes have been performed with a 9.4 T Penning trap mass spectrometer. Examples include 66As, which has a half-live of only 96 ms, and the super-allowed Fermi-emitter 38Ca, for which a mass accuracy of 8 ppb (280 eV) has been achieved. The high accuracy of this new mass value makes 38Ca a new candidate for the test of the conserved vector current hypothesis.

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Authors and Affiliations

  1. NSCL, Michigan State University, East Lansing, MI, 48824-1321, USA

    S. Schwarz, C. Bachelet, M. Block, G. Bollen, D. Davies, M. Facina, C. M. Folden III, C. Guénaut, E. Kwan, A. A. Kwiatkowski, D. J. Morrissey, G. Pang, A. Prinke, R. Ringle, J. Savory, P. Schury, C. Sumithrarachchi & T. Sun

  2. Centre d’Etudes Nucléaires de Bordeaux, 33175, Gradignan, France

    J. Huikari

Authors
  1. S. Schwarz
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  2. C. Bachelet
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  3. M. Block
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  4. G. Bollen
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  5. D. Davies
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  6. M. Facina
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  7. C. M. Folden III
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  8. C. Guénaut
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  9. J. Huikari
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  10. E. Kwan
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  11. A. A. Kwiatkowski
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  12. D. J. Morrissey
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  13. G. Pang
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  14. A. Prinke
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  15. R. Ringle
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  16. J. Savory
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  17. P. Schury
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  18. C. Sumithrarachchi
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  19. T. Sun
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Corresponding author

Correspondence to S. Schwarz.

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Schwarz, S., Bachelet, C., Block, M. et al. The LEBIT facility at MSU. Hyperfine Interact 173, 113–122 (2006). https://doi.org/10.1007/s10751-007-9549-9

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  • DOI: https://doi.org/10.1007/s10751-007-9549-9

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