Precision mass measurements at TITAN with radioactive ions

Kwiatkowski, A.A.; Macdonald, T.D.; Andreoiu, C.; Bale, J.C.; Brunner, T.; Chaudhuri, A.; Chowdhury, U.; Ettenauer, S.; Gallant, A.T.; Grossheim, A.; Lennarz, A.; Mané, E.; Pearson, M.R.; Schultz, B.E.; Simon, M.C.; Simon, Vanessa V.; Dilling, J.

doi:10.1016/j.nimb.2013.05.087

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Precision mass measurements at TITAN with radioactive ions

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Simon, Vanessa V.
TRIUMF;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität;

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http://dx.doi.org/10.1016/j.nimb.2013.05.087
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Zitation

Kwiatkowski, A., Macdonald, T., Andreoiu, C., Bale, J., Brunner, T., Chaudhuri, A., et al. (2013). Precision mass measurements at TITAN with radioactive ions. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 317(Part B), 517-521. doi:10.1016/j.nimb.2013.05.087.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0014-BF4C-8

Zusammenfassung

Measurements of the atomic mass further our understanding in many disciplines from metrology to physics beyond the standard model. The accuracy and precision of Penning trap mass spectrometry have been well demonstrated at TITAN, including measurements of neutron-rich calcium and potassium isotopes to investigate three-body forces in nuclear structure and within the island of inversion to study the mechanism of shell quenching and deformation. By charge breeding ions, TITAN has enhanced the precision of the measurement technique. The precision achieved in the measurement of the superallowed β-emitter ⁷⁴Rb in the 8+ charge state rivaled earlier measurements with singly charged ions in a fraction of the time. By breeding ⁷⁸Rb to the same charge state, the ground state could be easily distinguished from the isomer. Further developments led to threshold charge breeding, which permitted capturing and measuring isobarically and elementally pure ion samples in the Penning trap. This was demonstrated via the Q-value determination of ⁷¹Ge. An overview of the TITAN facility and recent results are presented herein.