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REAL-TIME IN-SITU MEASUREMENT OF MATERIAL ELASTIC PROPERTIES IN A HIGH GAMMA IRRADIATION ENVIRONMENT
| 题名： | REAL-TIME IN-SITU MEASUREMENT OF MATERIAL ELASTIC PROPERTIES IN A HIGH GAMMA IRRADIATION ENVIRONMENT |
| 作者： | Dave Cottle;Rob Schley;Ken Telschow; |
| 关键词： | gamma; laser; radiation; resonant; spectroscopy; ultrasound36 - MATERIALS SCIENCE; ELASTICITY; FLEXIBILITY; GAMMA RADIATION; IRRADIATION; LASERS; OSCILLATION MODES; TEMPERATURE DEPENDENCE |
| 摘要： | The first measurements of elastic vibrations of an object in-situ to a high gamma irradiation field using a laser coupled resonant ultrasound method are described. A vibration mode of an Inconel hollow capped cylinder was measured throughout a period of 170 hours as the gamma radiation field was increased to 104 Gray/hour. The vibration mode frequency was observed to change in a manner consistent with the temperature dependence of the elastic stiffness coefficients of the material. These results illustrate the efficacy of the laser approach for real-time resonant ultrasound measurements in this severely hostile nuclear environment. |
| 报告类型： | 科技报告 |
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