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MS: Fachverband Massenspektrometrie
MS 3: Precision Mass Spectrometry 2
MS 3.2: Vortrag
Montag, 5. März 2018, 16:45–17:00, R 1.020
Status and Recent Results of the FRS Ion Catcher — •Sönke Beck1,2 and the FRS Ion Catcher Collaboration2 — 1Justus-Liebig-Universität, Gießen — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt
The Fragment Separator at GSI produces and separates exotic nuclei in-flight at relativistic energies. The ions are then slowed down and thermalized in a cryogenic stopping cell (CSC), extracted and transferred to a Multiple-Reflection Time-of-Flight Mass-Spectrometer (MR-TOF-MS) for high precision mass measurements or isobar and isomer separation.
The current setup is a prototype for the future Ion Catcher at the low energy branch of the Super-FRS at FAIR and provides scientific results now. More than 40 short-lived isotopes and 15 isomers have been measured. Among these measurements is a systematic study of isomer-to-ground state ratios and excitation energies of neutron-deficient odd indium isotopes.
In the upcoming GSI beamtime period (2018/19), several experiments with the FRS Ion Catcher will be performed. These experiments cover a wide range of topics, including new isotope searches and measurements of unknown masses. Investigations of beta-delayed neutron emission probabilities and studies of multi-nucleon transfer reactions have also been approved.