Activation product transport in a FLiBe-vanadium alloy-HT9 system |
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| Affiliation: | 1. Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben, Austria;2. Department Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Austria;3. Univ. Grenoble Alpes, CNRS, Grenoble INP, SIMaP, F-38000 Grenoble, France;1. College of Environmental and Energy Engineering, Beijing University of Technology, 100124 Beijing, PR China;2. College of Materials Science and Engineering, Beijing University of Technology, 100124 Beijing, PR China;3. Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, 100124 Beijing, PR China;4. Beijing Scinor Membrane Technology Company Limited, 100083 Beijing, PR China |
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| Abstract: | An assessment is made of the gamma radiation hazards likely to be found around a fusion reactor heat transfer and tritium breeding loop which employs a vanadium alloy for the blanket and first wall structure and the ferritic-steel HT9 for the remainder of the loop. The coolant/tritium breeding fluid is the molten metallic salt FLiBe. Since the radiation levels near the primary loop components are found to be less than 100 mR/h 3–5 days after shutdown after three years of continuous full power operation, limited hands-on maintenance could be allowed. The very short half-lives of the predominant corrosion products make this result possible and make such a system very attractive. |
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