Stuttgart 2012 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 6: Poster
MS 6.13: Poster
Dienstag, 13. März 2012, 16:30–19:00, Poster.IV
Status of the Low-Energy Electron Cooler for the Cryogenic Storage Ring — •Claude Krantz1, Arno Becker1, Klaus Blaum1, Oldřich Novotný2, Stefan Schippers3, Andrey Shornikov1, Kaija Spruck3, and Andreas Wolf1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 2Columbia Astrophysics Laboratory, 550 West 120th Street, New York, NY 10027, USA — 3Institut für Atom- und Molekülphysik, Leihgesterner Weg 217, 35392 Giessen
The Cryogenic Storage Ring (CSR) under construction at the Max-Planck Institute for Nuclear Physics in Heidelberg is a next-generation electrostatic storage ring for atomic, molecular, and cluster ions. The CSR beam pipe will be cooled to ∼10 K, thereby reducing the residual gas density and the black body radiation background to very low values. This will allow precision experiments on IR-active or very massive ionic species that are not possible in room-temperature setups. The CSR features an electron-ion merged beams section that can be used both for electron cooling of the stored ions and for low-energetic electron-ion collision experiments. The design of the cooler must comply with the requirements of the CSR with regard to its very large range of operating and bakeout temperatures and the target vacuum of 10−13 mbar. The cooler will use a combination of superconducting and cold copper coils for magnetic guiding of the electron beam. The latter will be produced by a cold photocathode source already in operation. The cooler entered its construction phase in 2011 and is expected to become operational for the commissioning phase of the CSR.