2020 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 501-1 Basic Properties/501-2 Nuclear Fuel and the Irradiation Behavior

[1A11-14] Cesium Compounds and Fuel Fabrication Technique

Mon. Mar 16, 2020 3:50 PM - 4:55 PM Room A (Lecture Bildg. L 1F L-4)

Chair:Kenji Yoshii(JAEA)

3:50 PM - 4:05 PM

[1A11] The formation processes of highly concentrated radioactive Cs particles released by the Fukushima Dai-ichi Nuclear Power plant accident from the view point of the amounts of Sr and Pu.

*JUNYA IGARASHI1, Jian Zheng2, Zijian Zhang1, Kazuhiko Ninomiya1, Yukihiko Satou3, Miho Fukuda2, Youy Ni2,4, Tatsuo Aono2, Keisuke Sueki5, Atsushi Shinohara1 (1. Graduate school of sicience, Osaka University, 2. National Institutes for Quantum and Radiological Science and Technology, 3. Japan Atomic Energy Agency, 4. Peking University, 5. Graduate School of Pure and Applied Sciences, Tsukuba University)

Keywords:Fukushima Dai-ichi Nuclear Power Plant, Radioactive particle, Radiochemical analysis, Strontium, Plutonium

Radioactive particles having highly concentrated radioactive Cs were released into the environment by the accident of Fukushima Dai-ichi Nuclear Power plant. By radiochemical analysis, the amounts of Sr and Pu in these particles were quantified. The concentrations of Sr and Pu were different by the origin of the reactors. This difference indicated the different formation process of each radioactive particle by the reactor.