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Rostock 2019 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 8: Precision Mass Spectrometry

MS 8.5: Talk

Thursday, March 14, 2019, 12:00–12:15, U A-Esch 2

Studying of the position-sensitive resonant Schottky cavity — •Dmytro Dmytriiev1, Shahab Sanjari1, Yuri Litvinov1, 2, and Thomas Stöhlker1, 31GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany — 2Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany — 3Helmholtz-Institut Jena, 07743 Jena, Germany

Studying the r-process in stellar environment, that leads to the creation of elements heavier than 56-Fe, remains one of the fundamental questions of modern physics and therefore an active field of research within nuclear astrophysics. Apart from other key measurables like neutron capture cross section and decay lifetimes, nuclear masses are of outmost importance for pinpointing the r-process using theoretical and experimental approaches. Exotic nuclides which participate in the r-process due to their low production yield and short half-life can efficiently be investigated in storage rings. Due to the low signal level the detectors should be very sensitive and fast. Resonant Schottky cavity pickups fulfill such requirements. Apart from their applications in the measurements of beam parameters, they can be used in non-destructive in-ring decay studies of radioactive ion beams. In addition, position sensitive Schottky pick-up cavities can enhance precision in the isochronous mass measurement technique. The goal of this work is to construct and test such a position sensitive resonant Schottky cavity pickup based on theoretical calculations and simulations. A brief description of the detector and its application in mass and lifetime measurements will be provided in this contribution.

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