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Erlangen 2022 – scientific programme

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MO: Fachverband Molekülphysik

MO 8: Poster 1

MO 8.3: Poster

Tuesday, March 15, 2022, 16:30–18:30, P

Construction of a laser transfer line for the Cryogenic Storage Ring — •Annika Oetjens, Damian Müll, Aigars Znotins, Florian Grussie, and Holger Kreckel — Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany

The Cryogenic Storage Ring (CSR) at the Max-Planck-Institut für Kernphysik in Heidelberg is a fully electrostatic storage ring with inner vacuum chambers that can be cooled to liquid helium temperatures. Part of the experimental program at the CSR relies on the interaction of laser light with stored molecular ions for photodetachment, photodissociation, and spectroscopy studies. To this end we are currently planning the construction of a new dedicated laser area next to the CSR, which will enable more stable and controlled laser applications. The laser light will be guided through evacuated chambers into which optical components can be placed. Simulations and tests on how to minimize the loss of power for lasers with different beam quality are part of current work. Furthermore, tests of an active beam stabilization system to improve pointing instabilities for both continuous and pulsed lasers during frequency scans are ongoing. Moving all lasers into a temperature-controlled and air-filtered environment will improve experimental stability and increase safety during operation. The beam line is expected to be built in early 2022 and its design allows for adaptions to varying experimental requirements.

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