【摘 要】
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在中国原子能科学研究院CARR热室和303热室对来自某核电厂的AFA-3G燃料棒进行了辐照后检验,并对其中的破损棒进行了破损原因分析。辐照后检验的主要内容包括外观、尺寸、涡流
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在中国原子能科学研究院CARR热室和303热室对来自某核电厂的AFA-3G燃料棒进行了辐照后检验,并对其中的破损棒进行了破损原因分析。辐照后检验的主要内容包括外观、尺寸、涡流、X光、γ扫描等无损检验,以及裂变气体测量、金相、扫描电镜、氢含量测量等破坏性检验。检验结果显示,完整燃料棒的表面附着物随燃耗和线功率密度等因素的升高而明显增加,格架处的附
The AFA-3G fuel rods from a nuclear power plant were irradiated for post-irradiation inspection at CARR hot chamber and 303 hot chamber of China Institute of Atomic Energy. The damaged rods were analyzed for their damage. The main contents of the post-irradiation inspection include appearance, size, eddy current, X-ray, gamma scan and other non-destructive testing, as well as fission gas measurement, metallography, scanning electron microscopy, hydrogen content destructive testing. The test results show that the surface of the complete fuel rods attachments increased significantly with the increase of fuel consumption and line power density and other factors,
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