The Kinetics of 60Co Uptake on and Release from Stainless Steel With and Without 65Zn Addition Under Boiling Water Reactor Conditions

In water-cooled reactors measures to minimize the radiation fields due to the transport and deposition of 60 Co are important to ensure low occupational doses of radiation. For example, it is now accepted practice to add zinc to boiling water reactor coolant to minimize 60 Co transport and pickup by...

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Bibliographic Details
Published in:Nuclear technology 2002-12, Vol.140 (3), p.288-302
Main Authors: Lister, Derek H., Venkateswaran, Gopala, Arbeau, Norman
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Installations for energy generation and conversion: thermal and electrical energy
Online Access:Get full text
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Summary:In water-cooled reactors measures to minimize the radiation fields due to the transport and deposition of 60 Co are important to ensure low occupational doses of radiation. For example, it is now accepted practice to add zinc to boiling water reactor coolant to minimize 60 Co transport and pickup by surfaces. This paper describes a study of the kinetics of 60 Co deposition on Type 316 stainless steel in neutral, partially deoxygenated water at 563 K and 10.2 MPa with and without zinc traced with 65 Zn. The effect of zinc addition on the corrosion rate of preoxidized stainless steel was also studied using relatively high concentrations of additive. General observations and a mathematical model of the corrosion rate provide insights into the possible mechanisms involved.
ISSN:0029-5450
1943-7471
DOI:10.13182/NT02-A3340