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矢板 毅
no journal, ,
Neighboring lanthanides and actinides with the same valence are recognized as a chemically similar group of elements because there is almost no difference in their ionic radii and the electron configuration in the outermost shell is identical. Our research group has been conducting experiments to induce selective oxidation reactions of targeted elements through multiphoton excitation, in which dipole forbidden f-f transitions followed by allowed f-d transitions are continuously induced. In this presentation, we focused on the oxidation reaction of Am(III), and has detect the oxidation reaction of Am(III) by irradiating Am(III) with a precisely tuned short-pulse laser.
岡根 哲夫; 矢板 毅; 岡本 芳浩; 吉井 賢資; 藤森 伸一; 谷田 肇; 竹田 幸治; 小林 徹
no journal, ,
Japan Atomic Energy Agency (JAEA) operates two beamlines with different energy ranges, i.e., hard X-ray and soft X-ray ranges, at the synchrotron radiation facility SPring-8. Both beamlines are installed in Radioisotope Laboratory (RI Lab.), which is specialized for measurements of radioactive materials, and JAEA is promoting actinide science combined with advanced experimental techniques using synchrotron radiation there. In order to contribute the decommissioning of Fukushima Dai-ichi Nuclear Power Plant (1F), JAEA plans to analyze the chemical properties of fuel debris from 1F at the JAEA beamlines in SPring-8. In addition, JAEA participates in Advanced Research infrastructure for Materials and Nanotechnology in Japan, which is the project of MEXT of Japan. In this project, JAEA belongs to the research area of innovative energy conversion materials, and is planning especially to promote research for effective utilization of radiation from radioactive waste as energy.