Session: NDE-02-01 NDE Techniques and Applications for Petrochemical and Power Plant Components

Paper Number: 62069

Start Time: Tuesday, July 13, 2021, 05:00 PM

62069 - Inservice Inspection of Extended Dry Storage of Spent Nuclear Fuel, Part II: NDE/Sensor Technology Development and Codification 

In-service Inspection of Extended Dry Storage of Spent Nuclear Fuel, Part II: Nondestructive Examination Technology Development

Ryan M. Meyer¹, Jeremy Renshaw², Kenn Hunter³, Mike Orihuela², Jim Stadler⁴, Spencer Toone⁵, Karan Mauskar ⁶, Marvin Klein⁷, Max Weidmann⁷, Bradley Bobbs⁷, Darrel Dunn⁸, Bruce Lin⁸

¹Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99354

²Electric Power Research Institute, 1300 West W.T. Harris Blvd., Charlotte, NC 28262-8550

³Exelon Corp.

⁴Baker Hughes

⁵Palo Verde Generating Station

⁶Orano TN, 7160 Riverwood Dr., Columbia, MD 21046

⁷Intelligent Optical Systems, Inc., 2520 West 237th Street, Torrance, CA 90505

⁸United States Nuclear Regulatory Commission

 

This paper describes development and demonstration of nondestructive examination (NDE) technologies to support periodic examinations of interim dry cask storage system (DCSS) canisters for spent nuclear fuel in the USA to verify continued safe operation and that the canister confinement is intact and performing its intended safety function. Specifically, this work relates to NDE technology development for “canister” based DCSS systems which form the majority population of DCSSs, in the USA, for interim storage of spent nuclear fuel. Consideration of potential degradation of the welded stainless-steel canister in these systems is required for continued usage in the period of extended operation (PEO) beyond the initial license or certified term. Physical access to the canister surface is due to narrow annulus spaces between the canister and the overpack, tortuous entry pathways, and high temperatures and radiation doses that can be damaging to materials and electronics related to inspections. Several activities to demonstrate NDE technologies for the inspections of different DCSS systems will be summarized.

Presenting Author: Ryan Meyer Pacific Northwest National Laboratory

Authors:

Ryan Meyer Pacific Northwest National Laboratory
Jeremy Renshaw Electric Power Research Institute
Kenn Hunter Exelon Corporation
Mike Orihuela Electric Power Research Institute
Jim Stadler Baker Hughes
Spencer Toone Arizona Public Service
Karan Mauskar Orano TN
Uwe Wolf Orano TN
Marvin Klein Intelligent Optical Systems, Inc.
Max Weidmann Intelligent Optical Systems, Inc.
Bradley Bobbs Intelligent Optical Systems, Inc.
Darrell Dunn United States Nuclear Regulatory Commission
Bruce Lin United States Nuclear Regulatory Commission