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Research Van Swinderen Institute

Physics Colloquium, Lutz Schweikhard, Institute of Physics, University of Greifswald, Germany

When:Th 22-11-2018 16:00 - 17:00
Where:FSE-Building 5111.0080

Speaker: Lutz Schweikhard
Affiliation: Institute of Physics, University of Greifswald, Germany
Title: Ion-trap techniques for precision mass measurements of short-lived nuclei - and more
Date: 22 November 2018
Start: 16:00 (Doors open and coffee available at 15:30)
Location: FSE-Building 5111.0080
Host: Thomas Schlatholter


The binding energy is one of the most fundamental properties of atomic nuclei. Comparing its values of neighboring nuclides leads immediately to the nucleon separation energies and shell gaps. Via E=mc2 the nuclear binding energy is accessible by mass spectrometry.

More than three decades ago the ISOLTRAP setup was developed at Mainz and implemented at ISOLDE/CERN as the first ion-trap based mass spectrometer for short-lived nuclides. While the method was spread all over the world ISOLTRAP is still one of the major players in the field and at the forefront of corresponding trap developments.

The setup now includes four ion-storage devices: Two Penning traps, a linear radio-frequency (Paul) trap and a multi-reflection time-of flight (MR-ToF) compnent for mass separation and as a mass spectrometer itself.

The presentation will include an overview of the ISOLTRAP setup and the results of recent measurements. In addition, further applications of the MR-ToF component and the use of Penning traps for the study of atomic clusters will be described.