Development of a Fourier-Transform Ion-Cyclotron-Resonance detection for short-lived radionuclides at SHIPTRAP
Johannes Gutenberg-Universität, 55099 Mainz, Germany
2 Gesellschaft für Schwerionenforschung mbH, 64291 Darmstadt, Germany
Published online: 8 December 2007
The Penning-trap mass spectrometer SHIPTRAP at GSI is designed to provide clean and cooled beams of singly charged radioactive ions produced in fusion-evaporation reactions and separated in-flight by the velocity filter SHIP. The scientific goals include mass spectrometry, atomic and nuclear spectroscopy, and chemistry of transuranium species which are not available at ISOL- or fragmentation facilities Penning-trap based mass measurements on radionuclides relies up to now on the destructive time-of-flight ion-cyclotron-resonance method. One of the main limitations to the experimental investigations is the low production rate of most of these exotic nuclides, for which the use of this detection scheme is not applicable. A sensitive and non-destructive method, like the narrow-band Fourier Transform ion-cyclotron-resonance technique, is ideally suited for the identification and characterization of these species. A new cryogenic trap setup for SHIPTRAP exploiting this detection technique as well as some results of first preparatory tests are presented.
PACS: 7.75.+h – Mass spectrometers / 7.77.Ka – Charged-particle beam sources and detectors / 21.10.Dr – Binding energies and masses / 32.10.Bi – Atomic masses, mass spectra, abundances, and isotopes
© EDP Sciences, Springer-Verlag, 2007