Abstract
A laser ablation ion source has been built and tested at the COALA beamline. Time-of-flight measurements for various elements are sufficiently accurate to confirm the production of the intended ion species. Furthermore, the isotope shift between 40Ca+ and 44Ca+ has been determined on these bunched beams by collinear laser spectroscopy and compared to previous measurements. The frequency of the \(4s{}{}^{2}\textit {S}_{1/2} \rightarrow 4p{}{}^{2}\textit {P}_{1/2}\) transition has been determined to \(\nu ^{\mathrm {D1}}_{0}=755 222 766.8(15)\) MHz for 40Ca+, as well as the corresponding isotope shift of 44Ca+ to 848.1(23) MHz. This is in a good agreement to more accurate measurements performed in a recent ion trap experiment and demonstrates the strength of the collinear-anticollinear approach to reduce systematic effects caused by the broad velocity distribution generated in the ablation process.
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Acknowledgments
Open Access funding provided by Projekt DEAL. We acknowledge financial support from the German Federal Ministry for Education and Research (BMBF) under Contract No. 05P19RDFN1, the Helmholtz International Center for FAIR within the LOEWE program by the State of Hessen and funding by the Deutsche Forschungsgemeinschaft (DFG) Project No. 279384907 SFB 1245. Installation of COALA was supported by the DFG under Grant INST No. 163/392-1 FUGG. P.I. and T.R. acknowledge support from HGS-HIRe.
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This article is part of the Topical Collection on Proceedings of PLATAN 2019, 1st International Conference, Merger of the Poznan Meeting on Lasers and Trapping Devices in Atomic Nuclei Research and the International Conference on Laser Probing, Mainz, Germany 19-24 May 2019
Edited by Krassimira Marinova, Michael Block, Klaus D.A. Wendt and Magdalena Kowalska
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Renth, L., Imgram, P., Krämer, J. et al. First experiments with a laser ablation source at the COALA setup. Hyperfine Interact 241, 56 (2020). https://doi.org/10.1007/s10751-020-01715-1
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DOI: https://doi.org/10.1007/s10751-020-01715-1