Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Structure and Dynamics of Nuclei X

HK 59.6: Vortrag

Freitag, 3. April 2020, 12:30–12:45, J-HS E

Compact Collinear Laser Spectroscopy Setup for Ion Source Development and Educational Research — •Philipp Bollinger, Tim Ratajczyk, Tim Lellinger, and Wilfried Nörtershäuser — Institut für Kernphysik, Technische Universität Darmstadt

Collinear laser spectroscopy (CLS) 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 calculations with light as well as highly charged heavy ions, and was applied on relativistic beams to test special relativity. We are developing a compact setup for CLS to be used as hands-on experience in the Students Lab to familiarize them with the technique and its science applications. Moreover, the apparatus will serve for quick equipment tests and ion source specifications. For this setup a specially designed 90° bender with static electric fields is used to superimpose the ion beam with a collinear laser beam. A Faraday cup provides means to optimize the ion beam path and an optical detection region consisting of elliptic mirrors and photomultipliers are used for fluorescence detection. We will present details of the layout and the current status of the project together with some first measurements with the 90° bender.

We acknowledge funding from HIC for FAIR

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