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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 13: New Developments and Techniques

MS 13.1: Hauptvortrag

Donnerstag, 12. März 2020, 15:00–15:30, f128

The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy and its potential for fast and highly selective mass separation — •Stephan Malbrunot-Ettenauer for the MIRACLS collaboration — CERN, ISOLDE, Experimental Physics Department, CH-1211 Geneva 23, Switzerland

Collinear laser spectroscopy (CLS) is a powerful tool to access nuclear ground state properties of short-lived radionuclides such as spin, charge radius, and electromagnetic moments. Conventional CLS is based on the detection of fluorescence from laser-excited ions or atoms. It is limited to radioactive ion beams with yields of more than 100 to 10,000 ions/s, depending on the specific case and spectroscopic transition. To reach radionuclides with lower production yields, we are developing the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS) [1]. It is based on a Multi Reflection Time of Flight (MR-ToF) device in which ions bounce back and forth between electrostatic mirrors. The trapped ions are probed by the laser during each revolution inside the MR-ToF device which largely enhances the sensitivity of CLS. In order to preserve the high resolution of CLS, MIRACLS's MR-ToF device will operate at unprecedented ion beam energies of 30 keV. This also opens new possibilities for fast and highly selective mass separation beneficial for a wide range of applications. This talk will present the MIRACLS concept and its first experimental highlights.

[1] S. Sels et al., Nucl. Instr. Meth. Phys. Res. B, in press (2019)

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