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SAMOP 2021 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 2: Precision Mass Measurements II

MS 2.1: Hauptvortrag

Montag, 20. September 2021, 14:00–14:30, H3

Experiments with multiple-reflection time-of-flight mass spectrometers (MR-TOF-MS) at TRIUMF and GSI/FAIR — •Christine Hornung1, the FRS Ion Catcher Collaboration1,2, and the TITAN Collaboration31GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany — 2II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen, Germany — 3TRIUMF, Vancouver, Canada

MR-TOF-MS have been developed for the TITAN experiment at TRIUMF and for the FRS/Super-FRS at GSI/FAIR at the JLU Giessen. The systems incorporate several novel and unique concepts. The design enables world class performance, including a mass resolving power up to 1,000,000, mass accuracies down to 1.8·10−8 and a background suppression of greater than 7 orders of magnitude.

Experiments contributing to different fields from nuclear astrophysics and structure were performed at the FRS Ion Catcher experiment at the in-flight fragment separator FRS at GSI and the TITAN experiment at the ISOL facility ISAC at TRIUMF, Canada.

In addition, the use of these MR-TOF-MS goes even beyond precision mass measurements, e.g., they can be employed to identify and analyze ions independent of their decay properties unambiguously. This enables novel and universal approaches to measure reaction cross sections, fission yields, half-lives, and branching ratios. Recent highlights and perspectives from both experiments at GSI and TRIUMF will be presented focusing on different regions of the chart of nuclei.

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