2P2-5 レーザ超音波法を用いたジルコニウム管上の水素化物の特性測定(ポスターセッション)

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概要

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• A procedure employing a laser ultrasound technique (LUT) and an inversion calculation algorism are reported for nondestructive characterization of hydride rims (HR) in Zircaloy cladding tubes. With the LUT, ultrasonic waves propagating in the Zircaloy tubes with different HR thickness are generated and detected remotely by optical means. By measuring the dispersive ultrasonic wavespeeds with the LUT, together with an inversion technique, relations between the dispersion relations and thickness of HR are established. Good accuracy in measuring the HR thickness is demonstrated. Having the advantages of remote, non-contact and point-wise generation/detection, the LUT serves as a competitive candidate for the characterization of Zircaloy tubes generally operated in irradiative and temperature-elevated environments.

• 2009-11-18

著者

• Yang Che-hua

  National Taipei University Of Technology

• Liu I-Hung

  National Taipei University of Technology

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