期刊
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
卷 268, 期 7-8, 页码 1045-1049出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nimb.2009.10.094
关键词
Actinides, U-236; Accelerator mass spectrometry
A growing number of AMS laboratories are pursuing applications of actinides. We discuss the basic requirements of the AMS technique of heavy (i.e., above similar to 150 amu) isotopes, present the setup at the Vienna Environmental Research Accelerator (VERA) which is especially well suited for the isotope U-236, and give a comparison with other AMS facilities. Special emphasis will be put on elaborating the effective detection limits for environmental samples with respect to other mass spectrometric methods. At VERA, we have carried out measurements for radiation protection and environmental monitoring (U-236, Pu-239,Pu-240,Pu-241,Pu-242,Pu-244), astrophysics (Hf-182, U-236, Pu-244, Cm-247), nuclear physics, and a search for long-lived super-heavy elements (Z > 100). We are pursuing the environmental distribution of U-236, as a basis for geological applications of natural U-236. (C) 2009 Elsevier B.V. All rights reserved.
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