Real-Time Measurement of Material Elastic Properties in a High Gamma Irradiation Environment
This paper describes the first noncontact elastic vibration measurements of an object in a high gamma radiation field. Using a laser-coupled resonant ultrasound technique, the vibration modes of an Inconel hollow capped cylinder were measured as the gamma radiation field was increased to 104 Gy/h. This measurement technique allowed shifts in the resonant frequency of the sample’s vibration modes to be tracked over a 170-h period. The vibration mode frequencies changed in a manner consistent with the temperature dependence of the elastic stiffness coefficients of the material. These results demonstrate the efficacy of the laser approach for real-time resonant ultrasound measurements in this severely hostile nuclear environment.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- DOE - NE
- DOE Contract Number:
- DE-AC07-99ID-13727
- OSTI ID:
- 912468
- Report Number(s):
- INL/CON-05-00979; TRN: US0800413
- Resource Relation:
- Conference: 5th International Conference on NDE in Relation to Strutural Integrity for Nuclear & Pressurized Com,San Diego, CA,05/10/2006,05/12/2006
- Country of Publication:
- United States
- Language:
- English
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