In SITU Decontamination of Parts of the Primary Loops at the Gundremmingen Nuclear Power Plant
The Gundremmingen nuclear power plant, installed in 1966, is a 250 MWel boiling water reactor. The nuclear steam supply system (GE type) includes three external loops each with a secondary steam generator. In 1977, after more than ten years of operation, extensive testing and welding works at the steam generators and the primary loops due to the investigation of material problems had to be planned. Activated corrosion products, mainly Co-isotopes, which were deposited on the system surfaces during the long operation time, caused increasing dose rates at the system as shown in fig. 1.
KeywordsSteam Generator Corrosion Risk Primary Loop Eddy Current Test Boiling Water Reactor
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- J.A. AYRES, Decontamination of Nuclear Reactors and Equipment, the Ronald Press Company, New York 1970.Google Scholar
- N. EICKELPASCH, J. RENNER, KRB, Aktennotiz C 52/76.Google Scholar
- R. RIESS, H. BERTHOLD, BMFT-FB K 77–01 (1977).Google Scholar
- R. RIESS, H. BERTHOLD, Reaktortagung Hannover 1978, Tagungsbericht p. 962.Google Scholar
- N. EICKELPASCH, H. BERTHOLD, M. LASCH, Reaktortagung Hannover 1978, Tagungsbericht p. 959.Google Scholar
- N. EICKELPASCH, M. LASCH, Atomwirtschaft 5/79, p. 247–251.Google Scholar