| 动力堆乏燃料组件燃耗的非破坏性分析 |
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| 引用本文： | 金惠民,刘大鸣.动力堆乏燃料组件燃耗的非破坏性分析[J].原子能科学技术,1996(2). |
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| 作者姓名： | 金惠民 刘大鸣 |
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| 作者单位： | 中国原子能科学研究院放射化学研究所 |
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| 摘 要： | 概要综述了用无源和有源非破坏性分析技术测量动力堆乏燃料组件燃耗的基本原理、方法和实验装置。由电离室和裂变室组成的标准叉型探测器具有性能稳定可靠、分析速度快、操作简单、携带方便等优点。当前，它对ＬＷＲ组件的燃耗测量值和申报值的偏差在±１％以内。用高分辨γ谱方法（ＨＲＧＳ）测量组件的燃耗，也能达到同样的精度。根据测量得到的中子计数或γ放射性，可以确定组件中可裂变物质的含量。
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| 关 键 词： | 乏燃料，非破坏性分析，燃耗，有源中子测量，可裂变物质 |
NON-DESTRUCTIVE ASSAY METHODS FOR THE BURN-UP MEASUREMENT OF POWER REACTOR SPENT FUEL ASSEMBLIES |
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| Jin Huimin, Liu Daming.NON-DESTRUCTIVE ASSAY METHODS FOR THE BURN-UP MEASUREMENT OF POWER REACTOR SPENT FUEL ASSEMBLIES[J].Atomic Energy Science and Technology,1996(2). |
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| Authors: | Jin Huimin Liu Daming |
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| Abstract: | The principles, methods and equipments of burn-up measurement for power reactor spent fuel assembly using passive and active techniques are described. The fork detector, a simple, rapid and reliable measurement system, which is composed of an ion chamber and a fission chamber, has been used to measure the burn-up of LWR assemblies. The deviation between measured results and declared values can be made within 1 %. A deviation of 1 % can also be reached by using high-resolution gamma-ray spectrometry(HRGS) technique. The content of fissile materials in spent fuel assemblies can be determined from measured gamma-ray or neutron information. |
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| Keywords: | Spent fuel assembly Non-destructive assay Burn-up Active neutron measurement Fissile material |
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