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Düsseldorf 2007 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 7: Poster

MS 7.1: Poster

Wednesday, March 21, 2007, 16:30–18:30, Poster A

MATS - Measurements with an Advanced Trapping System at the future GSI facility FAIR — •Klaus Blaum1,2, Frank Herfurth1, and Collaboration MATS11GSI Darmstadt, 64291 Darmstadt, Germany — 2Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany

The mass and its inherent connection with the nuclear binding energy is one of the fundamental properties of a nuclide. Thus, precise mass values are important for a variety of applications, ranging from nuclear-structure studies like the investigation of shell closures, test of nuclear mass models and mass formulas, to tests of the weak interaction and of the Standard Model. The required relative precision ranges from 10−5 to below 10−8 for radionuclides, which most often have half-lives well below 1 s. Substantial progress in Penning trap mass spectrometry has made this method a prime choice for precision measurements on rare isotopes. The technique has the potential to provide high accuracy and sensitivity even for very short-lived nuclides. Furthermore, ion traps can be used and offer advantages for precision decay studies. With MATS at FAIR we aim for applying both techniques to very short-lived radionuclides: High-precision mass measurements and in-trap conversion electron and alpha spectroscopy. The experimental setup of MATS is a unique combination of an electron beam ion trap for charge breeding, ion traps for beam preparation, and a high precision Penning trap system for mass measurements and decay studies. The proposed setup and the planned experimental program will be presented.

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