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Recent developments for high-precision mass measurements of the heaviest elements at SHIPTRAP

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30312

Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Ruprecht-Karls-Universität;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30445

Eliseev,  Sergey
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Ramirez, E. M., Ackermann, D., Blaum, K., Block, M., Droese, C., Düllmann, C., et al. (2013). Recent developments for high-precision mass measurements of the heaviest elements at SHIPTRAP. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 317(Part B), 501-505. doi:10.1016/j.nimb.2013.07.055.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-C1EA-4
Zusammenfassung
Atomic nuclei far from stability continue to challenge our understanding. For example, theoretical models have predicted an “island of stability” in the region of the superheavy elements due to the closure of spherical proton and neutron shells. Depending on the model, these are expected at Z = 114, 120 or even 126 and N = 172 or 184. Valuable information on the road to the island of stability is derived from high-precision mass measurements, which give direct access to binding energies of short-lived trans-uranium nuclei. Recently, direct mass measurements at SHIPTRAP have been extended to nobelium and lawrencium isotopes around the deformed shell gap N = 152. In order to further extend mass measurements to the region of superheavy elements, new technical developments are required to increase the performance of our setup. The sensitivity will increase through the implementation of a new detection method, where observation of one single ion is sufficient. Together with the use of a more efficient gas stopping cell, this will us allow to significantly enhance the overall efficiency of SHIPTRAP.