First experiments with a laser ablation source at the COALA setup.

Autor: Renth, Laura, Imgram, Phillip, Krämer, Jörg, König, Kristian, Lellinger, Tim, Maaß, Bernhard, Müller, Patrick, Ratajczyk, Tim, Nörtershäuser, Wilfried
Předmět:
Zdroj: Hyperfine Interactions; 6/2/2020, Vol. 241 Issue 1, p1-11, 11p
Abstrakt: 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 4 s 2 S 1 / 2 → 4 p 2 P 1 / 2 transition has been determined to ν 0 D 1 = 755222766.8 (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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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