ISOLDE Workshop and Users meeting 2010

Session

Moments and Masses

8 Dec 2010, 11:15

503/1-001 - Council Chamber (CERN)

41. Collinear laser spectroscopy at ISOLDE and recent results.

Rainer Neugart (Institut für Physik and Institut für Kernchemie, University of Mainz)

08/12/2010, 11:15

Invited

Thirty years of collinear laser spectroscopy at ISOLDE have yielded a large number of nuclear spins, magnetic moments, electric quadrupole moments and mean square charge radii. The experiments were not just collecting nuclear data, but continuously improving the method by combining it with different detection techniques. Thus the measurements became increasingly sensitive and accurate, coping...

18. Implementation of a MR-ToF isobar separator at ISOLTRAP and first online results

Mr Robert Wolf (Ernst-Moritz-Arndt University Greifswald, Germany)

08/12/2010, 11:45

Accepted

The Penning-trap mass spectrometer ISOLTRAP performs precision mass measurements at the isotope separator ISOLDE/CERN with a relative mass uncertainty routinely reaching δm/m≈1x10-8 [1]. The time-of-flight ion-cyclotron-resonance (ToF-ICR) detection technique is employed to determine the frequency of ions stored in a Penning trap, from which their mass can be extracted [2]. Nuclides with...

21. Magnetic dipole moment of the Coulomb excited 2+1 state in 138Xe - final report from IS415 and future of the Transient Field technique at REX-ISOLDE

Joerg Leske (IKP, TU Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt, Germany)

08/12/2010, 12:05

Accepted

The isospin structure of nuclear excited states would preferably be investigated by observables which are most sensitive to it, e.g. nuclear magnetic moments. IS415 has started as one of the first attempts to measure the magnetic dipole moments of short-lived excited nuclear states at radioactive ion-beam facilities. We will report on the result obtained from this experimental campaign on the...

22. First combined DSAM and Coulomb excitation experiment at REX-ISOLDE - measuring the sign of the spectroscopic quadrupole moment of the 2+1 state in neutron-rich 140Ba

Christopher Bauer (IKP, TU Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt, Germany)

08/12/2010, 12:25

Accepted

The importance of precise lifetime information has recently been demonstrated in experiments at REX-ISOLDE and MINIBALL using the sensitivity of the Coulex yields to the nuclear reorientation effect in order to determine the sign of the spectroscopic quadrupole moment of the 2+1 state in 70Se [1,2]. Therefore we have utilized a new combined technique of lifetime measurement using the...