Reactance simulation for the defects in steam generator tube with outside ferrite sludge

Ryu, Kwon-Sang; Son, Derac; Park, Duck-gun; Jung, Jae-Kap; Kima, Yong-il

doi:10.1063/1.3074778

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2010

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Magnetic field simulation of magnetic phase detection sensor for steam generator tube in nuclear power plants

Ryu

Son

Park

et al. 2010

Journal of Applied Physics

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Magnetic phases and defects are partly produced in steam generator tubes by stress and heat, because steam generator tubes in nuclear power plants are used under high temperature, high pressure, and radioactivity. The magnetic phases induce an error in the detection of the defects in steam generator tubes by the conventional eddy current method. So a new method is needed for detecting the magnetic phases in the steam generator tubes. We designed a new U-type yoke which has two kinds of coils and simulated the signal by the magnetic phases and defects in the Inconnel 600 tube.

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