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Saito, Tatsuya; Gotoh, Kouichi; Sato, Motoshi; Takeda, Masashi; Yotsuyanagi, Tadasu
Symposium on water chemistry and corrosion in nuclear power plants in Asia 2003. Proceedings2004
Symposium on water chemistry and corrosion in nuclear power plants in Asia 2003. Proceedings2004
AbstractAbstract
[en] We have applied various countermeasures for worker dose reduction to plants in Onagawa Nuclear Power Station. 'Ni/Fe ratio control' has been applied to Unit 1. Due to the change of fuel cladding surface treatment, effect of Co-60 concentration reduction in the reactor water by Ni/Fe ratio control decreased. Considering such situation, 'ultra-low-crud high-nickel control' has been adopted to Unit 2. Main objective of ultra-low-crud high-nickel control is to suppress deposition of Co-60 onto primary circuit piping. Because we have obtained successful results in dose rate reduction in Onagawa unit 2, we decided to adopt this water chemistry control also in unit 3. In this paper, we describe water chemistry data under ultra-low-crud high-nickel control in unit 2 and unit 3. (author)
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Atomic Energy Society of Japan, Research Committee on Water Chemistry Standard, Tokyo (Japan); 334 p; 2004; p. 36-41; Symposium on water chemistry and corrosion in nuclear power plants in Asia 2003; Fukuoka (Japan); 11-12 Nov 2003; Available from Atomic Energy Society of Japan, Tokyo, 105-0004, Japan; 2 refs., 9 figs., 1 tab.
Record Type
Miscellaneous
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Conference
Country of publication
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BWR TYPE REACTORS, COBALT ISOTOPES, COOLING SYSTEMS, ELEMENTS, ENERGY SYSTEMS, ENRICHED URANIUM REACTORS, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, METALS, MINUTES LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, POWER REACTORS, RADIOISOTOPES, REACTOR COMPONENTS, REACTOR COOLING SYSTEMS, REACTORS, SEPARATION PROCESSES, THERMAL REACTORS, TRANSITION ELEMENTS, TUBES, WATER COOLED REACTORS, WATER MODERATED REACTORS, YEARS LIVING RADIOISOTOPES
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