The LEBIT facility at MSU - High-precision mass measurements at a fragmentation facility Academic Article uri icon


  • 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. 2007 Springer Science+Business Media B.V.

published proceedings


author list (cited authors)

  • Schwarz, S., Bachelet, C., Block, M., Bollen, G., Davies, D., Facina, M., ... Sun, T.

citation count

  • 5

complete list of authors

  • Schwarz, S||Bachelet, C||Block, M||Bollen, G||Davies, D||Facina, M||Folden, CM||GuĂ©naut, C||Huikari, J||Kwan, E||Kwiatkowski, AA||Morrissey, DJ||Pang, G||Prinke, A||Ringle, R||Savory, J||Schury, P||Sumithrarachchi, C||Sun, T

publication date

  • November 2006