Magneto-optic trapping of β-decaying 38Km, 37K from an on-line isotope separator

  • J. A. Behr
  • , A. Gorelov
  • , T. Swanson
  • , O. Häusser
  • , K. P. Jackson
  • , M. Trinczek
  • , U. Giesen
  • , J. M.D. Auria
  • , R. Hardy
  • , T. Wilson
  • , P. Choboter
  • , F. Leblond
  • , L. Buchmann
  • , M. Dombsky
  • , C. D.P. Levy
  • , G. Roy
  • , B. A. Brown
  • , J. Dilling

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

A magneto-optic trap (MOT) can provide a well-polarized, backing-free, localized source of radioactive atoms for α-decay experiments. We have trapped approximately 6000 atoms of 38Km (t1/2 = 0.925 s) and 2000 atoms of 37K (1.226 s) produced at the TRIUMF on-line separator TISOL in a vapor-cell MOT. We have measured optical isotope shifts and deduced the nuclear charge radii, which show an unusual lack of change at the neutron number N = 20 shell closure. Plans include a search for scalar contributions to the β+ - v correlation in the 0+--→0+ decay of 38Km.

Original languageEnglish
Pages (from-to)375-378
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number3
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

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