Inventory estimation of long-lived fission products (LLFPs) in high-level radioactive wastes (HLW) from spent nuclear fuels of light water reactors is important for a safety assessment of their disposal. In order to develop an inventory estimation method of difficult-to-measure LLFPs (Se-79, Tc-99, Sn-126, and Cs-135), a parametric study was carried out by using a sophisticated burnup calculation code and data. In the parametric study, fuel specifications and irradiation conditions are changed in the conceivable range. The considered parameters are fuel assembly types (PWR / BWR), U-235 enrichment, moderator temperature, void fraction, power density, and so on. From the calculated results, we clarify the burnup characteristics of the target LLFPs and their possible ranges of generations. Finally, candidates of the key nuclide are proposed for the scaling factor method of HLW.
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ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management
September 25–29, 2011
Reims, France
Conference Sponsors:
- Nuclear Engineering Division and Environmental Engineering Division
ISBN:
978-0-7918-5498-3
PROCEEDINGS PAPER
Computational Study for Inventory Estimation of Se-79, Tc-99, Sn-126, and Cs-135 in High-Level Radioactive Wastes From Spent Nuclear Fuels of Light Water Reactors
Keisuke Okumura,
Keisuke Okumura
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Shiho Asai,
Shiho Asai
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Yukiko Hanzawa,
Yukiko Hanzawa
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Tsutomu Okamoto,
Tsutomu Okamoto
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Hideya Suzuki,
Hideya Suzuki
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Masaaki Toshimitsu,
Masaaki Toshimitsu
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Jun Inagawa,
Jun Inagawa
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Takaumi Kimura,
Takaumi Kimura
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
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Kensuke Suzuki,
Kensuke Suzuki
Tokyo Electric Power Company, Tokyo, Japan
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Satoru Kaneko
Satoru Kaneko
Tokyo Electric Power Company, Tokyo, Japan
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Keisuke Okumura
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Shiho Asai
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Yukiko Hanzawa
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Tsutomu Okamoto
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Hideya Suzuki
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Masaaki Toshimitsu
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Jun Inagawa
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Takaumi Kimura
Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
Kensuke Suzuki
Tokyo Electric Power Company, Tokyo, Japan
Satoru Kaneko
Tokyo Electric Power Company, Tokyo, Japan
Paper No:
ICEM2011-59087, pp. 1443-1450; 8 pages
Published Online:
August 17, 2012
Citation
Okumura, K, Asai, S, Hanzawa, Y, Okamoto, T, Suzuki, H, Toshimitsu, M, Inagawa, J, Kimura, T, Suzuki, K, & Kaneko, S. "Computational Study for Inventory Estimation of Se-79, Tc-99, Sn-126, and Cs-135 in High-Level Radioactive Wastes From Spent Nuclear Fuels of Light Water Reactors." Proceedings of the ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management, Parts A and B. Reims, France. September 25–29, 2011. pp. 1443-1450. ASME. https://doi.org/10.1115/ICEM2011-59087
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