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Heidelberg 2015 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 7: Ion Storage Rings

MS 7.2: Talk

Wednesday, March 25, 2015, 11:15–11:30, PH/HS2

The low-energy electron cooler for the Cryogenic Storage Ring — •Stephen Vogel, Klaus Blaum, Claude Krantz, Svenja Lohmann, and Andreas Wolf — Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany

The Cryogenic Storage Ring (CSR) at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany, is being commissioned. CSR will be an ideal tool for preparing and studying cold atomic and molecular ions using ion beams of 20−300 keV kinetic energy (per ion charge unit). As a first important upgrade CSR will be equipped with an electron cooler. The latter is designed for cooling beams with a charge-to-mass ratio q/m of 1 to 1/160 e/amu. This corresponds to an electron beam energy range of 1 to 163 eV. The beam will be produced by a cryogenic photocathode and electron temperatures in the co-moving frame reach down to 10 K. The cooler can also be used as an electron target by detuning the electrons’ kinetic energy. The cooler is currently under construction and first tests on the already finished warm beam line parts are ongoing. The current status of the CSR electron cooler will be presented.

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