CX-020912: Remote Laser Based Nondestructive Evaluation for Post Irradiation Examination of ATF Cladding – University of South Carolina

The University of South Carolina proposes to develop a robust remote pulsed laser (PL)-actuation and scanning laser Doppler vibrometer (SLDV)-sensing system with multifunctional capabilities for measuring cladding coating thickness of a few tens of µm and detecting defects underneath such as corrosion, micro-cracking, and delamination. The tasks associated with this project are (1) Theoretical foundation (understand the ultrasonic-cladding-substrates interaction mechanisms); (2) System development; (3) Capability development; (4) Sample testing; and (5) Demonstration and testing. A partnership with Westinghouse Churchill Site (WCS) and Savannah River National Laboratory (SRNL) will supply samples of chromium-coated and silicon carbide composite claddings, with and without defects, and with and without irradiation. Existing laboratory facilities and equipment will be used.