Commissioning of the Francium Trapping Facility at TRIUMF

Abstract

We report on the successful commissioning of the Francium Trapping Facility at TRIUMF. Large laser-cooled samples of francium are produced from a francium ion beam delivered by the ISAC radioactive ion beam facility. The ion beam is neutralized on an yttrium foil, which is subsequently heated to transfer the atoms into the magneto-optical trapping region. We have successfully trapped ${}^{207}$Fr, ${}^{209}$Fr and ${}^{221}$Fr, with a maximum of $2.5\times 10^5$ ${}^{209}$Fr atoms. The neutral cold atoms will be used in studies of the weak interaction through measurements of atomic parity non-conservation.

arXiv comment21 pages, 8 figures

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Cited by in corpus (11)

• Laser Spectroscopy for the Study of Exotic Nuclei
• Prospects for assembling ultracold radioactive molecules from laser-cooled atoms
• The hyperfine anomaly in heavy atoms and its role in precision atomic searches for new physics
• Nuclear magnetic moments of francium 207-213 from precision hyperfine comparisons
• Isotope Shifts in the 7s$\to$8s Transition of Francium: Measurements and Comparison to \textit{ab initio} Theory
• Effect of nuclear quadrupole moment on parity nonconservation in atoms
• Electric dipole transition amplitudes for atoms and ions with one valence electron
• Measurements of the sticking time and sticking probability of Rb atoms on a polydimethylsiloxane coating
• A decay microscope for trapped neon isotopes
• Offline trapping of ${}^{221}$Fr in a magneto-optical trap from implantation of an ${}^{225}$Ac ion beam
• An accelerator experiment for junior and senior high school students to improve students' involvement in fundamental physics