Rostock 2019 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 35: Precision Spectroscopy of atoms and ions

A 35.13: Poster

Donnerstag, 14. März 2019, 16:15–18:15, S Fobau Physik

Compact Collinear Laser Spectroscopy Setup for Educational Usage — •Philipp Bollinger, Tim Ratajczyk, and Wilfried Nörtershäuser — Institut für Kernphysik, Technische Universität Darmstadt

Collinear laser spectroscopy is widely used to perform highly precise measurements of atomic spectra to extract nuclear properties, namely charge radii, magnetic dipole and electric quadrupole moments [Neugart et al. J. Phys. G. 44 064002 (2017)]. It has also been used to test QED calculation of higher ions [Nörtershäuser et al. PRL 115, 033002 (2015)] and was applied on relativistic beams to test special relativity [Botermann et al. PRL 114, 239902 (2015)] and strong-field bound state QED in heavy ions [Ullmann et al. Nat. Comm. 8, 15484 (2017)]. To give students the possibility to get experienced with this technique, a compact setup for collinear laser spectroscopy is being prepared at TU Darmstadt to be used in the advanced lab classes. The setup uses a specially designed 90° dipole bender to superimpose laser and ion beam which will be tested for its usability in laser spectroscopy. An optical detection region with photomultipliers and a mass spectrometer allow further investigations. We will present the layout and current status of the project.