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モックアップ試験流下ガラス試料の放射光XAFS分析(受託研究)

Yoshihiro OkamotoEnergy and Environment Materials Science Division Materials Sciences Research Center Nuclear Science Research Institute Sector of Nuclear Science Research 日本原子力研究開発機構Takayuki NagaiEnergy and Environment Materials Science Division Materials Sciences Research Center Nuclear Science Research Institute Sector of Nuclear Science Research 日本原子力研究開発機構Hideaki ShiwakuEnergy and Environment Materials Science Division Materials Sciences Research Center Nuclear Science Research Institute Sector of Nuclear Science Research 日本原子力研究開発機構Shigeru KanoEnergy and Environment Materials Science Division Materials Sciences Research Center Nuclear Science Research Institute Sector of Nuclear Science Research 日本原子力研究開発機構Haruyuki HimenoEnergy and Environment Materials Science Division Materials Sciences Research Center Nuclear Science Research Institute Sector of Nuclear Science Research 日本原子力研究開発機構Hiroshi KobayashiIntellectual Resources Management and R&D Collaboration Department , Japan Atomic Energy Agency. 2-4 Shirakata , Tokai-mura , Naka-gun , Ibaraki-ken 319-1195 JapanMikio NakataniEnergy and Environment Materials Science Division , Materials Sciences Research Center , Nuclear Science Research Institute , Sector of Nuclear Science Research ,

2019ja

Ochiq kirishYashil

ABI

Annotatsiya

The chemical state and local structure of some elements in the simulated nuclear waste glass samples (20 batches) prepared by bottom drain test in the full scale mock-up tests using KMOC melter were investigated by synchrotron radiation based X-ray absorption fine structure (XAFS) analysis. As a result of the analysis of cerium element, it was confirmed that the oxidation proceeds gently as the batch advanced. For manganese, iron, and zinc, there was almost no difference between batches, which seemed to be stabilized by getting into the frame structure of the borosilicate glass. There were no elements that seemed to be clearly crystalline except for platinum group elements. Remarkable precipitation was hardly observed in zirconium and molybdenum with the imaging analysis.

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