文章基本信息

标题：High-precision mass measurements for reliable nuclear astrophysics calculations
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作者：A. Herlert ; S. Baruah ; K. Blaum 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：High-precision mass measurements as performed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN are an important contribution to the investigation of nuclear astrophysics processes. Accurate nuclear masses with 0.1 ppm relative mass uncertainty are required for tests of models which are used to predict mass values of nuclides far from the valley of stability. Especially for the determination of the nucleosynthesis pathways, e.g. the rp-process or the r-process, a large number of nuclear masses need to be precisely and accurately known. In addition to a radioactive ion beam facility that delivers a large variety of short-lived nuclides with sufficient yield, a sophisticated experimental setup for precise mass measurements is required. An overview of the results from the mass spectrometer ISOLTRAP is given and the limits and possibilities are described.