https://doi.org/10.1140/epjad/i2005-06-031-3
ENAM 2004
Recent high-precision mass measurements with the Penning trap spectrometer ISOLTRAP
1
GSI, Planckstraße 1, 64291, Darmstadt, Germany
2
CSNSM-IN2P3-CNRS, 91405, Orsay-Campus, France
3
Institute of Physics, Johannes Gutenberg-University, 55099, Mainz, Germany
4
NSCL, Michigan State University, 48824-1321, East Lansing, MI, USA
5
CERN, 1211, Geneva, Switzerland
6
Institute of Physics, Ernst-Moritz-Arndt-University, 17487, Greifswald, Germany
* e-mail: F.Herfurth@gsi.de
Received:
22
October
2004
Accepted:
18
February
2005
Published online:
25
April
2005
The Penning trap mass spectrometer ISOLTRAP has to date been used for the determination of close to 300 masses of radionuclides. A relative mass uncertainty of 10-8 can now be reached. Recent highlights were measurements of rp-process nuclides as for instance 72-74Kr or superallowed β emitters like 22Mg, 74Rb and 34Ar. The heaviest nuclides measured so far with ISOLTRAP are neutron-rich radium and francium isotopes. An overview of ISOLTRAP mass measurements and details about the recent experiment on 229-232Ra and 230Fr are presented.
PACS: 21.10.Dr Binding energies and masses – / 82.80.Qx Ion cyclotron resonance mass spectrometry –
© Società Italiana di Fisica and Springer-Verlag, 2005