Selection of gamma ray enemy from fission products  for real-time fuel element  rupture detection and analysis

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Selection of gamma ray enemy from fission products for real-time fuel element rupture detection and analysis

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- Selection of gamma ray enemy from fission products for real-time fuel element rupture detection and analysis
- NUCLEAR TECHNIQUES Issue 6, (1996)
- 作者机构：
  
  海军医学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： O572.2
- Published：01 June 1996
- 稿件说明：
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[1]王月兴,马晓林,云昌全,曲善奎.元件破损实时监测与分析中裂变产物光子能量的选择[J].核技术,1996(06):343-348.

Selection of gamma ray enemy from fission products for real-time fuel element rupture detection and analysis[J]. Nuclear techniques, 1996, (6).
[1]王月兴,马晓林,云昌全,曲善奎.元件破损实时监测与分析中裂变产物光子能量的选择[J].核技术,1996(06):343-348. DOI：

Selection of gamma ray enemy from fission products for real-time fuel element rupture detection and analysis[J]. Nuclear techniques, 1996, (6). DOI：

摘要

计算了不同裂变产物的主要γ光子对φ６．２ｍｍ×７６．２ｍｍＮａＩ探测器光电峰的相对探测效率。结果表明，在燃料元件破损监测中，光电效应计数率最高的几种光子能量与核素是８１ｋｅＶ（１３３Ｘｅ）、１９６．３ｋｅＶ（８８Ｋｒ）、２２０．９ｋｅＶ（８９Ｋｒ）、２４９．８ｋｅＶ（１３５Ｘｅ）、４０２．６ｋｅＶ(８７Ｋｒ和５２９．８ｋ６Ｖ（１３３Ｉ）。由于活化产物γ辐射的于扰，监测用γ光子的能量不宜选择在８００ｋｅＶ以上。计算结果已成功地用于压水反应堆燃料元件安全性的实时监测。

Abstract

The relative efficiencies to detect fission products by using a Φ76.2mm ×76.2mm NaI detector have been calculated for the real--time fuel element rupture detection and analysis.The calculated results show that the optimum gamma energies for the element rupture detection are 81keV（133Xe）

196.3keV（88Kr）

220.9keV（89Kr）

249.8keV（135Xe）

402.6keV（87Kr） and 529.8keV（133I）.Ganuna ray energy higher than 800 keV is not suitable for the detection due to the interference of gamma rays from the activated products. The calculated results have successfully been applied to analysis of the element safety for a pressurized-water reactor.

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