An infrared thermography NDE facility which is utilized in the acceptance test of ITER d ivertor components has been developed in JAEA. This NDE facility can inspect the integri ty of the bonding interface of the divertor components based on its surface temperature response by means of switching of hot (95 deg C)/cold (5 deg C) water. The advantages of this facility are 1) to have active coolant purging system which enables rapid temperatu re change and 2) to inspect the surface and the both side walls of...
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Development of a non destructive evaluation system using infrared images for divertor on nuclearfusion experiment reactor

A method for an X-ray stress measurement can be classified into the method to determine the orientation angles for measuring the diffraction peak and the method to determine the optimum stress values. In this study, a new method for an X-ray stress measurement using an area detector is proposed and is named ”direct method”. In the direct method, the diffraction ring due to the incident X-ray beam normal to the specimen surface is used. The optimum stress values are determined by a simplex method as a k...
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A New Method for X-Ray Stress Measurement Using Area Detector

X-Ray diffraction spots from coarse grains of austenitic stainless steel, SUS316L, were measured with an area detector. The error of the measurement of the diffraction angle was investigated.“ -method ”was proposed to solve the error due to the position of the coarse grain. However, the -method was not effective in solution of the error. A double-exposure method (DEM) was proposed as the measurement without error due to the position of the coarse grain. The DEM did not solve the error due to the divergen...
英字タイトル:
A Study on Strain Measurement of Coarse Grains Using X-Ray Area Detector