期刊
JOURNAL OF NUCLEAR MATERIALS
卷 415, 期 1, 页码 S667-S671出版社
ELSEVIER
DOI: 10.1016/j.jnucmat.2010.11.050
关键词
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With the Japan-US joint research project Tritium, Irradiations, and Thermofluids for America and Nippon (TITAN), an initial set of tungsten samples (99.99% purity, A.L.M.T. Co.) were irradiated by high flux neutrons at 323 K to 0.025 dpa in High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL). Subsequently, one of the neutron-irradiated tungsten samples was exposed to a high-flux deuterium plasma (ion flux: 5 x 10(21) m(-2) s(-1), ion fluence: 4 x 10(25) m(-2)) in the Tritium Plasma Experiment (TPE) at Idaho National Laboratory (INL). The deuterium retention in the neutron-irradiated tungsten was 40% higher in comparison to the unirradiated tungsten. The observed broad desorption spectrum from neutron-irradiated tungsten and associated TMAP modeling of the deuterium release suggest that trapping occurs in the bulk material at more than three different energy sites. (C) 2010 Elsevier B.V. All rights reserved.
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