Direct mass measurements of proton-rich nuclei in the region from tellurium to polonium
| Autor: | Yu. N. Novikov, H. Eickhoff, M. Steck, G. Kraus, H. Irnich, K. Beckert, F. Nolden, Hermann Wollnik, T. Beha, M. Haussmann, F. Nickel, Ch. Kozhuharov, C. Scheidenberger, H. Reich, T. Radon, Hans Geissel, Th. Kerscher, A. Schwinn, O. Klepper, Yoshitaka Fujita, B. Franzke, W. Schwab, H.C. Jung, K. E. G. Löbner, G. Münzenberg, B. Schlitt, F. Bosch, K. Sümmerer, Hans-Jürgen Kluge |
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| Zdroj: | ResearcherID Scopus-Elsevier |
| Popis: | In recent experiments using the FRS-ESR facilities at GSI we have measured the masses of 225 proton-rich nuclei in the range of 135≤A≤209. Applying the new technique of Schottky-Mass Spectrometry an accuracy of about 100 keV and a resolving power of 4 · 10 5 was achieved. Masses for cooled projectile fragments with half-lives larger than a few seconds were determined by their revolution frequencies in the ESR. Reliable predictions for the proton-drip line can be made for elements from bismuth to protactinium using the precisely measured Q α -values from literature and our new mass values for the isotopes at the ends of the corresponding α-chains. |
| Databáze: | OpenAIRE |
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