Berlin 2005 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 35: Instrumentation und Anwendungen
HK 35.7: Vortrag
Dienstag, 8. März 2005, 18:45–19:00, TU MA144
Time-of-flight mass spectrometry at SHIPTRAP and at the FRS-Ion-Catcher — •Wolfgang R. Plaß1, Zhenyu Di1,2, Timo Dickel1, Alexander F. Dodonov3, Sergey A. Eliseev1,2, Hans Geissel1,2, Viatcheslav I. Kozlovski3, Gottfried Münzenberg2, Martin Petrick1, Christoph Scheidenberger1,2, and Zheng Wang1,2 — 1II. Physikalisches Institut, Justus-Liebig-Universität Gießen — 2GSI, Darmstadt — 3BINEPCP, Russian Academy of Sciences, Chernogalovka, Russia
The current status of a time-of-flight mass spectrometer system for the SHIPTRAP and FRS-Ion-Catcher facilities at GSI is described. At these facilities, fusion-reaction products and projectile / fission fragments, respectively, are decelerated and thermalized in gas-filled stopping cells and made available to precision experiments performed at energies in the eV range.
The time-of-flight mass spectrometer can be used to obtain broad-band, high-resolution mass spectra with cycle times of less than 1 ms. Thus it is ideally suited for the characterization and optimization of the stopping cells as key parts of these facilities, as well as for direct mass measurements on very short-lived exotic nuclei, and for atomic and chemical studies. Recent results from experiments performed at SHIPTRAP and the FRS-Ion-Catcher and developments for chemical studies and ion mobility measurements of transuranium elements will be presented.