ISOLDE Workshop and Users meeting 2007/2008

Session

Trapping for Nuclear Physics

Dec 17, 2007, 4:35 PM

503/1-001 - Council Chamber (CERN)

Conveners

Trapping for Nuclear Physics

• Karsten Riisager (CERN)

21. 20 Years of ISOLTRAP

H.-Juergen Kluge (GSI)

12/17/07, 4:35 PM

Twenty years ago, the first publication on a Penning trap mass measurement of a radionuclide appeared in Hyperfine Interactions 38 (1987) 793 with the title “FIRST ABSOLUTE MASS MEASUREMENTS OF SHORT-LIVED ISOTOPES". The authors were Georg Bollen, Phillip Dabkiewicz, Peter Egelhof, Thomas Hilberath, Hartmut Kalinowsky, Franz Kern, Harald Schnatz, Lutz Schweikhard and Helmut Stolzenberg from...

26. Nuclear mass measurements for nucleosynthesis studies at ISOLTRAP

Martin Breitenfeldt (Ernst-Moritz-Arndt-Universitaet Greifswald)

12/17/07, 5:05 PM

In 2007 the mass measurements at the tandem Penning trap mass spectrometer ISOLTRAP focussed on nuclear structure and nucleosynthesis studies. The masses of about 20 nuclides have been measured with relative mass uncertainties as low as 1*10-8. The beam times were dedicated to the mass determination of neutron deficient and neutron rich nuclides relevant for the investigation of the rp- and...

32. JYFLTRAP at IGISOL - Atomic masses from nuclear structure physics to fundamental physics

Ari Jokinen (University of Jyvaskyla)

12/17/07, 5:25 PM

JYFLTRAP and IGISOL-facility has been in high-precision operation now for few years producing vast amount of atomic mass data for nuclear structure studies and fundamental physics. All in all more than 200 atomic masses of ground and isomeric states has been measured from sub-keV to few keV precision. In this contribution the recent highlights from the facility will be reviewed and few...

19. WITCH: first measurement and recent developments

Michaël Tandecki (Inst. voor Kern- en Stralingsfysica - Katholieke Universiteit Le)

12/17/07, 5:45 PM

We present in detail the status of the WITCH experiment (Weak Interaction Trap for Charged particles). The primary aim is to investigate exotic weak currents in nuclear beta decay by measuring a recoil ion spectrum and deriving the beta neutrino angular correlation coefficient from its shape. At the end of the year 2006, we succeeded for the first time in measuring a recoil ion spectrum using...

34. TRIGA-TRAP: Mass measurements on exotic and heavy nuclides

Mr Dennis Neidherr (Institut fur Physik - Johannes Gutenberg-Universitat)

12/17/07, 6:00 PM

The TRIGA Mainz research reactor offers unique possibilities for online mass measurements on neutron-rich isotopes as produced by fission of U-235, Pu-239 or Cf-249 targets. A new Penning trap mass spectrometer will be installed, featuring not only the commonly used time-of-flight resonance technique, but also the non-destructive narrow-band image current technique, enabling the detection of a...

44. Masses of halo nuclides and decay-spectroscopy in the lead region: new developments at ISOLTRAP

Magdalena Kowalska (CERN)

12/17/07, 6:15 PM

The ISOLTRAP experiment has up to now provided precise values of masses of more than 300 radionuclides with relative uncertainty below 10-7 and many cases reaching 10-8. Presently, there are two main projects under way at ISOLTRAP, which aim at widening the number of nuclides to study and the type of the performed measurements. The first is devoted to studying masses of halo nuclei, which...