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Identification of Trace Constituent Phases in Nuclear Power Plant Deposits Using Electron Backscatter Diffraction (EBSD)
Identification of Trace Constituent Phases in Nuclear Power Plant Deposits Using Electron Backscatter Diffraction (EBSD)
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机译:使用电子背散射衍射(EBSD)鉴定核电厂沉积物中的痕量组成相
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摘要
The instant invention provides a method of identifying lead-bearing crystalline phases or compounds in deposits formed on surfaces, such as the heated surfaces of nuclear power plant systems. A deposit sample or specimen is obtained and examined to obtain an image, an area elemental composition spectrum, and an x-ray elemental map to identify a location containing a lead-bearing species of interest. Electron backscatter diffraction is then used to obtain a characteristic diffraction pattern from the location, which is compared to a library of known diffraction patterns to identify any lead-bearing crystalline phases or compounds present in the location. Finally, any potential phase or compound of the lead in the deposit sample is identified by comparing the elemental composition spectrum with the electron backscatter diffraction crystalline compound identification.
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