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Hannover 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...

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MS: Fachverband Massenspektrometrie

MS 5: Precision Mass Spectrometry II

MS 5.1: Hauptvortrag

Dienstag, 10. März 2020, 15:15–15:45, f128

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 Collaboration31II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany — 3TRIUMF, Vancouver, Canada

At the JLU Giessen, MR-TOF-MS have been developed for the TITAN experiment at TRIUMF and for the FRS/Super-FRS at GSI/FAIR. 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 6·10−8 and a background suppression of grater than 7 orders of magnitude. Mass measurements of neutron-deficient Yb and Tm isotopes have been performed across the N=82 shell closure using TITAN’s MR-TOF-MS. With the MR-TOF-MS of the FRS Ion Catcher at the FRS the masses of neutron-deficient 124Xe projectile fragments in the vicinity of 100Sn have been measured, including the 101In ground state. Two new isomeric states have been discovered in 97Ag and 101In. A novel method for the measurement of half-lives and decay branching ratios with the FRS Ion Catcher has been developed and experimentally applied.

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