Abstract
The ground state hyperfine splitting of has been measured by laser-microwave double-resonance spectroscopy in the online rf trap of RIKEN’s slow RI-beam facility. Be ions produced by projectile fragmentation of at were thermalized in a rf ion guide gas cell and subsequently laser cooled in the ion trap to . This -fold reduction of the kinetic energy allows precision spectroscopy of these ions. A magnetic hfs constant of was measured for , from which a nuclear magnetic moment of was deduced.
- Received 20 June 2008
DOI:https://doi.org/10.1103/PhysRevLett.101.212502
©2008 American Physical Society
Synopsis
How do you trap a very high-energy ion?
Published 15 December 2008
The report of a successful experiment at the new radioactive ion trap at RIKEN paves the way for future measurements of more exotic nuclei, and tests some of the key methods needed to build future rare-isotope accelerators.
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