Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Corrosion or damage prevention
Patent
1983-08-24
1988-02-02
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Corrosion or damage prevention
G21C 1100
Patent
active
047228237
ABSTRACT:
A nuclear power plant using a structural material consisting of metal which comes into contact with a liquid in which radioactive substances are dissolved has a function to suppress the deposition of the radioactive substances. In this function, metal elements constituting the surface layer of the structural material which comes into contact with the liquid are oxidized by injecting oxidizing agents from outside, thereby preliminarily producing an oxide film. The oxidizing agents comprise at least one kind selected from the group consisting of oxygen, hydrogen peroxide, chromate, nitrite, molybdate, tungstate and ferrate. Particularly, by suppressing the deposition of radioactive substances on a stainless steel, the dose rate of exposure of workers is effectively reduced.
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Van Vlack, Elements of Materials Science and Engineering, Addison-Wesley, 1980, pp. 472-474 and 476.
Hodgman et al., Handbook of Chemistry and Physics, CRP, 1960, pp. 588 and 589.
Honda Takashi
Izumiya Masakiyo
Kawakami Toshio
Minato Akira
Ohsumi Katsumi
Hitachi , Ltd.
Kyle Deborah L.
Wendtland Richard W.
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