A reform will be implemented in the helium purification system of the 10MW High Temperature Gas-cooled Test Reactor (HTR-10) in China. The measurement of the γ dose rates of facilities, including valves, pipes, dust filter, etc., in the purification system of the HTR-10, has been performed. The results indicated that most radiation nuclides are concentrated in the dust filter and facilities at the entrance of the helium purification system upstream of the dust filter. Other facilities have the same γ dose rate level as the background. Based on the previous study and experiences in AVR, the measurement results can be understood that the radioactive dust carried by the helium gas was filtered by the dust filter. It provides important insights for the decontamination and decommissioning of facilities in the primary loop, especially in the helium purification system of the HTR-10 as well as the High Temperature Reactor-Pebblebed Modules (HTR-PM).
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ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management
September 8–12, 2013
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
- Environmental Engineering Division
ISBN:
978-0-7918-5602-4
PROCEEDINGS PAPER
A Reform in the Helium Purification System of the HTR-10: γ Dose Rate Measurement and Suggestions for Decommissioning
Jianzhu Cao,
Jianzhu Cao
Tsinghua University, Beijing, China
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Liguo Zhang,
Liguo Zhang
Tsinghua University, Beijing, China
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Wenqian Li,
Wenqian Li
Tsinghua University, Beijing, China
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Sheng Fang
Sheng Fang
Tsinghua University, Beijing, China
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Feng Xie
Tsinghua University, Beijing, China
Hong Li
Tsinghua University, Beijing, China
Jianzhu Cao
Tsinghua University, Beijing, China
Suyuan Yu
Tsinghua University, Beijing, China
Liguo Zhang
Tsinghua University, Beijing, China
Wenqian Li
Tsinghua University, Beijing, China
Sheng Fang
Tsinghua University, Beijing, China
Paper No:
ICEM2013-96095, V002T03A019; 5 pages
Published Online:
February 18, 2014
Citation
Xie, F, Li, H, Cao, J, Yu, S, Zhang, L, Li, W, & Fang, S. "A Reform in the Helium Purification System of the HTR-10: γ Dose Rate Measurement and Suggestions for Decommissioning." Proceedings of the ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. Volume 2: Facility Decontamination and Decommissioning; Environmental Remediation; Environmental Management/Public Involvement/Crosscutting Issues/Global Partnering. Brussels, Belgium. September 8–12, 2013. V002T03A019. ASME. https://doi.org/10.1115/ICEM2013-96095
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