GSI Helmholtzzentrum fr Schwerionenforschung Gmb H GSI recent

GSI Helmholtzzentrum für Schwerionenforschung Gmb. H GSI – recent research highlights and a few strategical remarks Nu. PECC meeting, Caen, October 9, 2015 GSI Helmholtzzentrum für Schwerionenforschung Gmb. H

Radiation Detected Resonance Ionization Laser Spectroscopy of 254 No at SHIP Measurement of: atomic levels, ionization potential hyperfine structure isotopic shifts Study of: relativistic effects for Z>100 nuclear moments & spins changes in mean square charge radii 254 No è First ever laser spectroscopy beyond Fm è Incoming rate of 254 No: ≈ 5 atoms/s / overall efficiency for 254 No: ≈ 10% GSI Helmholtzzentrum für Schwerionenforschung Gmb. H Verbundforschung SHE-Physik / M. Block, M. Laatiaoui et al.

Currently running at (SHE Chemistry): GSI Helmholtzzentrum für Schwerionenforschung. Verbund. Gmb. H Measuring Chemical Properties of Flerovium (Z=114) forschung Status in the published literature: 2010 (PSI/Dubna): Three atoms observed noble gas-like behavior inferred 2014 (TUM/GSI): Two atoms observed noble metallic behavior inferred New TASCA Run, aiming at 12 atoms to solve the puzzle: Run 1 (Fall 2014) Duration: 12 days Beam dose: ~2. 8· 1018 2 decay chains from Fl / Cn observed (under final evaluation) A. Yakushev (Spokesperson) and L. Lens with experimental setup in TASCA cave X 8 GSI Helmholtzzentrum für Schwerionenforschung Gmb. H Run 2 (Aug. -Oct. 2015), current prelim. status Duration (main beam) ~10 days 18

GSI Helmholtzzentrum für Schwerionenforschung Gmb. H Workshop on the design of the FAIR tunnel T 110 Introduction and Goals of the Workshop GSI Helmholtzzentrum für Schwerionenforschung Gmb. H

The outside view on the tunnel T 110 Tunnel T 110 Outer Diameter: ca. 350 m Circumference (acc): 1083 m Base: 16 to 18 m under ground 10. 05 m 1. 0 m ~4. 6 m 1. 5 m 1. 2 m 1. 5 m Question: Is the tunnel T 110 reasonable or overdesigned? 16. 15 m 7 m 1. 5 m Beam Pipe Workshop on the design offür the. Schwerionenforschung FAIR tunnel T 110 , September GSI Helmholtzzentrum Gmb. H 9 / 10, 2015 Width: 33. 2 m, Height: 8. 6 m Ursula Weyrich 5

GSI Helmholtzzentrum für Schwerionenforschung Gmb. H Findings and Observations • high quality and motivated project team • presentations made by the project team were comprehensive and informative • the project team responded well to the questions raised during the workshop • given the demanding constraints (accelerator requirements, radiation protection issues, environmental obligations), the present design is a feasible solution and can be implemented • potential cost savings for redesign of the tunnel as presented by the planning team as well as by the review committee indicating no significant cost savings, at this stage, do not appear to be justified considering the potential lengthy planning delays and the exclusion of future options at a later point in time. GSI Helmholtzzentrum für Schwerionenforschung Gmb. H