Freiburg 2024 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 2: New Methods, Applications, Storage Rings

MS 2.3: Vortrag

Montag, 11. März 2024, 17:45–18:00, HS 3042

First experiments with the CSR-ReMi, the Reaction Microscope inside the cryogenic ion storage-ring CSR — •Felix Herrmann, Weiyu Zhang, David V. Chicharro, Florian Trost, Klaus Blaum, Manfred Grieser, Florian Grussie, Holger Kreckel, Oldřich Novotrný, Andreas Wolf, Alexander Dorn, Robert Moshammer, Claus Dieter Schröter, and Thomas Pfeifer — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Deutschland

The CSR-ReMi is a newly installed in-ring reaction microscope for experiments with slow and cold molecular or cluster ions in the cryogenic storage ring CSR [1]. A reaction microscope (ReMi) is a combined electron and ion spectrometer [2, 3]. It offers multi-hit capability and provides high detection efficiency, acceptance and resolution. With the coincident detection of all collision fragments kinematically complete data-sets on the reaction dynamics can be collected. The integration of the CSR-ReMi into the CSR was finalized in July 2023 and first commissioning experiments under cryogenic conditions were performed recently. Emphasis was given to electron-transfer and electron-loss reactions in collisions of various types of stored ions with neutral atoms or molecules that were injected by a supersonic gas jet. Selected results of these first experiments will be presented.

References:

[1] R. von Hahn et al., Rev. Sci. Instrum. 87, 063115 (2016)

[2] J. Ullrich et al., Rep. Prog. Phys. 66, 1463-1545 (2003)

[3] H. Schmidt-Böcking et al., Ann. d. Phys. 533, 2100134 (2021)

Keywords: cryogenic storage ring; reaction microscope; ion-neutral collisions