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Preparation of Reference Materials on Radiochemical Analysis for Low-Level Radioactive Waste Generated From Japan Atomic Energy Agency

[+] Author Affiliations
Ken-ichiro Ishimori, Yutaka Kameo, Mikio Nakashima, Kuniaki Takahashi

Japan Atomic Energy Agency, Tokai, Ibaraki, Japan

Paper No. ICEM2010-40111, pp. 117-123; 7 pages
  • ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management
  • ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management, Volume 1
  • Tsukuba, Japan, October 3–7, 2010
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 978-0-7918-5452-5 | eISBN: 978-0-7918-3888-4
  • Copyright © 2010 by ASME


In order to prepare simulated reference materials of solidified products using a laboratory-scale electric furnace instead of a plasma heating device, melting tests of miscellaneous simulated solid wastes were conducted. Over 90% of Cs was remained in the solidified product by keeping the basicity (CaO wt%/SiO2 wt%) to be 0.05. Under the optimum melting conditions, reference materials containing α-ray emitting nuclides (237 Np, 241 Am and 244 Cm) or γ-ray emitting nuclides (60 Co, 137 Cs and 152 Eu) were prepared. For reference materials containing β-ray emitting nuclides such as 14 C and 36 Cl, a preparation method with nuclear reaction 14 N(n, p)14 C or 35 Cl(n, γ)36 Cl by thermal neutron irradiation was attempted. The radioactivity concentrations of the reference materials were evaluated from radiochemical analysis. It was confirmed that the reference materials could be successfully prepared on the present preparation methods.

Copyright © 2010 by ASME



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