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http://dx.doi.org/10.7733/jnfcwt.2014.12.3.211

Evaluation of Core Residence Time of Fuel Cruds from Hanul Unit 1 Cycle 17  

Lee, Doo Ho (KHNP Central Research Institute)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.12, no.3, 2014 , pp. 211-216 More about this Journal
Abstract
Corrosion products are released to the primary coolant in the corrosion process of structural materials. They are deposited on fuel surfaces and activated on exposure to a neutron flux with formation of radionuclides that can become incorporated into out-of-core surface films. To get a clear understanding of activated crud formation process, the specific activity and core residence time of fuel cruds was calculated as a function of exposure time to the core neutron flux on the assumption that parent nuclide is being deposited continuously. Fuel cruds were sampled in the fuel scraping campaign from Hanul Unit 1 Cycle 17 and analyzed for elemental concentration and radioisotope activity.
Keywords
Corrosion product; Fuel crud; Core residence time; Specific activity;
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