[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.1016/j.net.2018.07.007

Detectability evaluation of the loose parts in steam generator by eddy current testing techniques

Kim, Kyungcho (Korea Institute of Nuclear Safety)
Min, Kyongmahn (UMI(Universal Monitoring & Inspection Inc.))
Kim, Changkuen (Doosan Heavy Industries & Construction)
Kim, Jin-Gyum (Korea Institute of Nuclear Safety)
Jhung, Myungjo (Korea Institute of Nuclear Safety)

Publication Information

Nuclear Engineering and Technology / v.50, no.7, 2018 , pp. 1160-1167 More about this Journal

Abstract

Detectability of the loose parts (LPs) in steam generator (SG) was studied with eddy current testing technique such as X-probe, bobbin and rotating coils ( $MRPC^{(R)}$ ) as a function of LP size and spacing between LP and tube or between LP and support structures. SG mockup simulating SG tube and support structures with LP was fabricated. The X-probe showed slightly better detectability than $MRPC^{(R)}$ for LP of ferrous (F-LP) material and vice versa for LP of nonferrous (NF-LP) material. In terms of feasibility, inspection rate and other predictable features of the SG tubing inspections, X-probe can be used reliably for monitoring the LPs and the flaws formed by LPs on SG tubes.

Keywords

SG; ECT; Loose parts; X-probe; Bobbin; $MRPC^{(R)}$ ;

Citations & Related Records

Reference

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