A Shielding Assembly for Residual Stress Measurement of Radioactive Monitoring Sample by Neutron Diffraction
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摘要: 在核工业领域中,有些工程部件在服役过程中会诱发产生一定的放射性,具有放射性的样品在中子残余应力测试过程中首先要考虑辐射安全的问题。基于中子衍射实验技术和辐射安全要求,提出了一种反应堆监督样品中子残余应力测试分析的实验方法和流程。根据该方法和流设计加工了一套实用的屏蔽装置。该装置可以有效屏蔽样品的核辐射,满足一定辐射剂量的安全要求,同时满足中子衍射三维残余应力测量的基本实验要求。Abstract: In nuclear industry some components will be radioactive from neutron induced activity. Radiation safety should be taken into consideration when the sample is measured. Considering the neutron diffraction technique and radiation safety, a method for measuring the radioactive sample is proposed and a shielding assembly is designed and fabricated. Using this assembly, residual stress of the radioactive sample can be measured within a safe radiation environment.
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Key words:
- Radioactive sample /
- Neutron diffraction /
- Residual stress /
- Shielding assembly
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