Analysis of Elemental Composition of Main Construction Materials in the Nuclear Power Plant 'Fugen'
| Autor: | Yoshitake Shiratori, Norio Kawata, Kiyotaka Maekawa, Mitsumori Shimizu, Osamu Arai |
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| Rok vydání: | 2010 |
| Předmět: |
Glow Discharge Mass Spectrometry
business.industry Nuclear engineering Reference data (financial markets) Analytical chemistry Nuclear power Mass spectrometry Standard deviation Nuclear decommissioning law.invention Nuclear Energy and Engineering law Nuclear power plant Environmental science Inductively coupled plasma Safety Risk Reliability and Quality business |
| Zdroj: | Transactions of the Atomic Energy Society of Japan. 9:405-418 |
| ISSN: | 2186-2931 1347-2879 |
| DOI: | 10.3327/taesj.j10.012 |
| Popis: | Elemental data for construction materials used in nuclear power plants are necessary for the prediction of radioactivity induced by neutron irradiation. To evaluate radioactivity in retired Japanese nuclear power plants, it is preferable to use elemental data of the structural materials actually used in each plant. However, since there is no such domestic database, NUREG elemental data are commonly used for this type of evaluation. It is, therefore, required to establish a domestic elemental database of the structural materials actually used in power plants. In order to obtain elemental data, more than 130 specimens were collected from the structural materials of the Fugen Nuclear Power Plant, which was constructed in the 1970s and whose operation was stopped in 2003. Seventy-six compositional elements in the specimens were analyzed using appropriate chemical analyses and measurement techniques, such as glow discharge mass spectroscopy and inductively coupled plasma mass spectroscopy. These obtained data were compared with NUREG elemental data and other standard or reference data. As a result, it was determined that the concentrations of major elements were not so different from NUREG elemental data and other standard or reference data. On the other hand, a slight difference was seen among the concentrations and their standard deviation in the analytical data of impurities, such as cobalt. These data are expected to become a reference in the establishment of domestic standard data, and they are also expected to be applied to the evaluation of irradiation-induced radioactivity in the structural materials of reactors that are subject to decommissioning in the future. |
| Databáze: | OpenAIRE |
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