Nondestructive examination (NDE) reliability for inservice inspection of light waters reactors

Technical Report · Tue Oct 31 23:00:00 EST 1989

DOI:https://doi.org/10.2172/5065719· OSTI ID:5065719

Doctor, S. R.; Deffenbaugh, J. D.; Good, M. S.; Green, E. R.; Heasler, P. G.; Simonen, F. A.; Spanner, J. C.; Taylor, T. T. ^[1]

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1. Pacific Northwest Lab., Richland, WA (USA)

Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other inspected components. This is a progress report covering the programmatic work from April 1988 through September 1988. 33 refs., 70 figs., 12 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Engineering; Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: NRC
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5065719
• Report Number(s): NUREG/CR-4469-Vol.9; PNL--5711-Vol.9; ON: TI90006254
• Country of Publication: United States
• Language: English

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