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Stored and Cooled Ions Division
 
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Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
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Building: Gentner lab, room 134
69117 Heidelberg

 

Advanced seminar, WS09/10

Physics with stored and cooled ions

Seminar room Blaum (MPI Kphys / kHS)
fortnightly, Wed. 15.00 - 17.00


Seminar program


Date: 21.10.2009
Speaker: Henrik Buhr
Title: Hot Water in a Cool Place - Dissociative Recombination of D3O+

 

Date: 11.11.2009
Speaker: Oliver Trapp
Title: Determination of the absolute configuration of chiral molecules by CEI

 

Date: 18.11.2009
Speaker: Yuri Litvinov
Title: Mass and lifetime measurements of stored exotic nuclei

 

Date: 02.12.2009
Speaker: Mario Mendes
Title: Isomers in Space - Dissociative Recombination of DCND+

 

Date: 16.12.2009
Speaker: Jens Ketelaer
Title: TRIGA-TRAP: High-precision mass measurements on neutron-rich fission products and actinoides

Abstract

The nuclear mass differs from the constituent masses by the binding energy and, thus, reflects all interactions within the nucleus. Therefore, high-precision mass data play an important role, e.g. in nuclear structure studies as well as in astrophysical calculations of the process responsible for the creation of heavy elements. Whereas the neutron-deficient side of the nuclear chart has already been quite well investigated, most of the interesting neutron-rich nuclides are still not available for experiments. Before future radioactive beam facilities will provide access to nuclides involved in the rapid-neutron capture process (r-process), the research reactor TRIGA Mainz can be used for first experiments pushing away from the valley of stability towards the r-process path.
The double-Penning trap mass spectrometer TRIGA-TRAP has been recently installed as a part of the TRIGA-SPEC project to perform high-precision mass measurements on neutron-rich fission products. In addition, samples of actinoid elements will be investigated as well. Recently, the first direct mass measurement on 241Am has been performed at TRIGA-TRAP. Together with the three nobelium isotopes 252-254No investigated last year at SHIPTRAP (GSI) these are the very first direct mass measurements on elements above uranium. TRIGA-TRAP can provide new anchor points and test the presently accepted mass values for the actinoides. Besides the measurement program, new detection techniques like a non-destructive ion detection with single-ion sensitivity will be developed and tested.

 

Date: 13.01.2010
Speaker: Max Berg
Title: Vibrational spectroscopy of H3+: advancing into the visible spectral region