Replacement of Radiography with Ultrasonic Phased Array for Feeder Tubes in CANDU Reactors using ASME Code Case N- 659-2
34th Annual CNS Conference - 2013 June 09-12

Presented at:
34th Annual CNS Conference
2013 June 09-12
Toronto, Canada
Session Title:
Plant Life Extension, Refurbishment & Aging

Robert Simmons (Metalogic Inspection Services)
Quintin Bower (Metalogic Inspection Services)
Shawn Arseneau (Metalogic Inspection Services)


In this paper we will discuss Phased Array technology for the replacement of radiography on new construction projects in the nuclear industry. Specifically, through the implementation of A.S.M.E. code N-659-2 and MetaPhase™ phased array services. Phased Array is not considered a new technique on in service welds in the nuclear industry; however it was unprecedented on new construction welds and required significant investment in regulatory approval (C.N.S.C.), technology research and development, regulatory, client and technician training for successful service implementation. This paper will illustrate the abilities and limitations associated in replacing radiography with MetaPhase™, as well as the substantial benefits relative to increased production, improved weld quality, enhanced safety and overall project cost savings.

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