High-precision mass measurements of 203−207Rn and 213Ra with SHIPTRAP

Droese, C.; Ackermann, D.; Andersson, L.-L.; Blaum, Klaus; Block, M.; Dworschak, M.; Eibach, M.; Eliseev, Sergey; Forsberg, U.; Haettner, E.; Herfurth, F.; Heßberger, F.P.; Hofmann, S.; Ketelaer, Jens; Marx, G.; Minaya Ramirez, E.; Nesterenko, D.; Novikov, Yu.N.; Plass, W.R.; Rodríguez, D.; Rudolph, D.; Scheidenberger, C.; Schweikhard, L.; Stolze, S.; Thirolf, P.G.; Weber, C.

doi:10.1140/epja/i2013-13013-0

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High-precision mass measurements of ^203−207Rn and ²¹³Ra with SHIPTRAP

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

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

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Ketelaer, Jens
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Citation

Droese, C., Ackermann, D., Andersson, L.-L., Blaum, K., Block, M., Dworschak, M., et al. (2013). High-precision mass measurements of ^203−207Rn and ²¹³Ra with SHIPTRAP. The European Physical Journal A: Hadrons and Nuclei, 49(1): 13, pp. 1-7. doi:10.1140/epja/i2013-13013-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000E-B54F-D

Abstract

The masses of the nuclides ^203-207Rn and ²¹³Ra were measured directly for the first time with the Penning-trap mass spectrometer SHIPTRAP at GSI Darmstadt. The results confirm the previously determined mass values. The mass uncertainties for ²⁰⁵Rn and ²¹³Ra were significantly reduced. The results are relevant for the investigation of the nuclear shell structure between N = 82 and N = 126 . As an indicator of structural changes the two-neutron separation energies S_2n (Z,N) have been studied.