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The FDD-1 system developed by CIAE for on-line monitoring fuel rod failure of nuclear power plantconsists of γ-ray detector, γ-ray spectrum analyzer, computer, and an analysis code for evaluating thestatus of fuel rod failure. It would be determined that the fuel rod failure occurs when a large amount of γactivity increases in the primary system measured by γ-ray detector near the CVCS. The fuel rod failure
The FDD-1 system developed by CIAE for on-line monitoring fuel rod failure of nuclear power plant con- sists of γ-ray detector, computer, and an analysis code for evaluating the status of fuel rod failure. It would be determined that the fuel rod failure occurs when a large amount of γactivity increases in the primary system measured by γ-ray detector near the CVCS. The fuel rod failure