Full-Field Inspection Using Pulsed Laser for Nuclear Plants

Demonstrated by Ultrasonic Simulation Using Finite Dif6erence Method

Abstract

Many of Japan's social infrastructure facilities are now entering the latter half of their lifetime. In such circumstances, time- and cost-effective in-situ inspection for SCC (Surface Corrosion Cracking) is required urgently even in the power generation plant market. Optical full-field inspection using pulsed electric speckle pattern interferometry (ESPI) realizes time-effective flaw-screening inspection and will be suitable for RBM (Risk Based Maintenance). Full-field inspection using pulsed ESPI was experimentally demonstrated and simulation results using finite difference method determined attractive performance points.