西安脉冲堆燃料元件燃耗无损实验测量

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Nondestructive Experimental Measurement of Fuel Element Burnup in Xi’an Pulse Reactor

摘要: 介绍了西安脉冲堆燃料元件燃耗测试理论、所用设备及实验方法,重点阐述了燃耗测量中用到的中子/γ自吸收校正、¹³⁷Cs活度校正、探测效率标定等关键技术。对堆芯内两根具有代表性的燃料棒D5、G14开展了燃耗测量,并与理论计算结果进行了比较。结果表明:燃耗测量结果与理论估算值在不确定度范围内一致,该燃耗测试分析系统是可靠、适用的。
- 燃耗 /
- 无损测量 /
- 自吸收校正 /
- 探测效率 /
- 脉冲堆
Abstract: The fuel element burnup measurement theory, the equipment and experimental method are described in this paper. The key techniques for burnup measurement, such as neutron/Gamma self-absorb correction, ¹³⁷Cs activity correction and detect efficiency scale, are emphatically expatiated. The burnup of D5 and G14 are measured and the measurement results are compared with the theoretical calculation. The results show that the result of experimental measurement and theoretical calculation are accordant in uncertainty area, and the system is credible.
- Burnup /
- Nondestructive measurement /
- Self-abstract correction /
- Detect efficiency /
- Pulse reactor