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MS: Fachverband Massenspektrometrie

MS 1: Precision Mass Spectrometry 1

MS 1.5: Vortrag

Montag, 5. März 2018, 11:45–12:00, R 1.020

SHIPTRAP upgrades for mass measurements beyond Z=103 — •M. Eibach^1,2, K. Blaum³, M. Block^2,4,5, S. Chenmarev³, P. Chhetri⁶, S. Eliseev³, P. Filianin^{3, 7}, F. Giacoppo^2,4, S. Götz^2,4,5, Yu. Gusev⁷, F.-P. Heßberger^2,4, O. Kaleja^3,5, M. Laatiaoui⁸, S. Lohse^4,5, E. Minaya Ramirez⁹, A. K. Mistry^2,4, T. Murböck^2,4, Yu. Novikov^7,10, S. Raeder^2,4, D. Rodriguez¹¹, F. Schneider^2,4, L. Schweikhard¹, and P. Thirolf¹² — ¹Universität Greifswald — ²GSI Darmstadt — ³MPIK Heidelberg — ⁴Helmholtz Institut Mainz — ⁵Universität Mainz — ⁶TU Darmstadt — ⁷PNPI KI Gatchina — ⁸KU Leuven — ⁹IPN Orsay — ¹⁰SPbSU St.Petersburg — ¹¹Universidad de Granada — ¹²LMU München

With the goal of locating the island of stability, it is essential to study the predictive power of nuclear mass models. This for example is carried out with precise mass measurements of the heaviest nuclei which provide anchor points for nuclear masses. In previous experiments, the masses of several ₁₀₂No and ₁₀₃Lr isotopes have been measured directly for the first time with the Penning-trap mass spectrometer SHIPTRAP. Further extending mass spectrometry towards the superheavy elements required accommodating the low production rates through major modifications. The Penning-trap system was moved to a new location in order to integrate a cryogenic buffer-gas cell for a more efficient thermalization of the fusion-evaporation products of interest.
An overview of the technical developments and the latest high-precision off-line measurements in the context of neutrino and nuclear astrophysics will be presented in this contribution.