Nov 25 – 27, 2013
Europe/Zurich timezone

Ultra-sensitive laser spectroscopy on Ca isotopes

Nov 25, 2013, 3:40 PM
The Globe (CERN)

The Globe



Ronald Fernando Garcia Ruiz (Katholieke Universiteit Leuven (BE))


A program of bunched beam collinear laser spectroscopy at the COLLAPS beam line has recently focussed on the nuclear structure evolution around N = 32, in neutron rich K [1,2], Mn [3] and Ca [4] isotopes. The current results obtained from optical detection of calcium isotopes will be presented, in which hyperfine structures and isotope shifts were measured for the first time in 49,51,52Ca. With these new experimental results, the charge radii, magnetic moments and electrostatic quadrupole moments have been determined. With a production yield of 52Ca (N=32) estimated at ∼ 300 ions/s, optical detection techniques are not suitable for measurements beyond N=32. In order to extend the program up to 53Ca (∼ 100 ions/s) and 54Ca (∼ 10 ions/s), substantial modifications to the COLLAPS beam line are in progress. With these modifications we will implement an ultra-sensitive particle detection scheme [5]. The current developments towards the design, simulation and implementation of the beam line will be explored. [1] J. Papuga, et al., Phys. Rev. Lett. 110 (2013) 172503. [2] K. Kreim et al., Phys. Letters B (2013) submitted [3] C. Bradley, et al., CERN-INTC-2010-073 INTC-P-286. [4] M.L. Bissell, et al., CERN-INTC-2011-049 INTC-P-313. [5] L. Vermeeren, et al., Phys. Rev. Lett. 68 (1992) 1679.

Primary authors

Prof. Gerda Neyens (K.U. Leuven) Mark Bissell (Katholieke Universiteit Leuven (BE)) Ronald Fernando Garcia Ruiz (Katholieke Universiteit Leuven (BE))


Dr Deyan Yordanov (Max-Planck-Gesellschaft (DE)) Hammen Michael (Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany) Jasna Papuga (Katholieke Universiteit Leuven (BE)) Kim Kreim (Max-Planck-Gesellschaft (DE)) Klaus Blaum (Max-Planck-Gesellschaft (DE)) Dr Magdalena Kowalska (CERN) Nadja Froemmgen (Institut für Kernchemie, Universität Mainz, D-55099 Mainz, Germany) Rainer Neugart (Johannes-Gutenberg-Universitaet Mainz) Wilfried Noertershaeuser (University Mainz)

Presentation materials