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Title	Laser-spectroscopy studies of the nuclear structure of neutron-rich radium
Author(s)	Lynch, K M (CERN) ; Wilkins, S G (Manchester U.) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Bissell, M L (Manchester U.) ; Chrysalidis, K (CERN) ; Cocolios, T E (Leuven U.) ; Day Goodacre, T (Manchester U. ; CERN) ; de Groote, R P (Leuven U.) ; Farooq-Smith, G J (Leuven U.) ; Fedorov, D V (St. Petersburg, INP) ; Fedosseev, V N (CERN) ; Flanagan, K T (Manchester U.) ; Franchoo, S (Orsay, IPN) ; Garcia Ruiz, R F (Manchester U.) ; Gins, W (Leuven U.) ; Heinke, R (Mainz U., Inst. Phys.) ; Koszorús, Á (Leuven U.) ; Marsh, B A (CERN) ; Molkanov, P L (St. Petersburg, INP) ; Naubereit, P (Mainz U., Inst. Phys.) ; Neyens, G (Leuven U.) ; Ricketts, C M (Manchester U.) ; Rothe, S (CERN) ; Seiffert, C (CERN) ; Seliverstov, M D (Mainz U., Inst. Phys.) ; Stroke, H H (New York U.) ; Studer, D (Mainz U., Inst. Phys.) ; Vernon, A R (Manchester U.) ; Wendt, K D A (Mainz U., Inst. Phys.) ; Yang, X F (Leuven U.)
Publication	2018
Number of pages	9
In:	Phys. Rev. C 97 (2018) 024309
DOI	10.1103/PhysRevC.97.024309
Subject category	Nuclear Physics - Experiment
Abstract	The neutron-rich radium isotopes, Ra222−233, were measured with Collinear Resonance Ionization Spectroscopy (CRIS) at the ISOLDE facility, CERN. The hyperfine structure of the 7s2S01→7s7pP13 transition was probed, allowing measurement of the magnetic moments, quadrupole moments, and changes in mean-square charge radii. These results are compared to existing literature values, and the new moments and change in mean-square charge radii of Ra231 are presented. Low-resolution laser spectroscopy of the very neutron-rich Ra233 has allowed the isotope shift and relative charge radius to be determined for the first time.
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