应用双电离室方法测定15MeV中子场内化学样品中的吸收剂量

郎淑玉; 张仲伦; 孟香琴

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应用双电离室方法测定15MeV中子场内化学样品中的吸收剂量

科研简报 | 更新时间：2023-04-23

- 应用双电离室方法测定15MeV中子场内化学样品中的吸收剂量
- THE DETERMINATION OF ABSORBED DOSES IN CHEMICAL SAMPLES IN 15 MeV NEUTRON FIELD BY A TWIN CHAMBER METHOD
- 辐射研究与辐射工艺学报 1985年3卷第2期页码：55-60
- 作者机构：
  
  1.中国科学院生物物理研究所
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郎淑玉, 张仲伦, 孟香琴. 应用双电离室方法测定15MeV中子场内化学样品中的吸收剂量[J]. 辐射研究与辐射工艺学报, 1985,3(2):55-60.

Lang Shuyu, Zhang Zhonglun, Meng Xiangqin. THE DETERMINATION OF ABSORBED DOSES IN CHEMICAL SAMPLES IN 15 MeV NEUTRON FIELD BY A TWIN CHAMBER METHOD[J]. Journal of Radiation Research and Radiation Processing, 1985,3(2):55-60.
郎淑玉, 张仲伦, 孟香琴. 应用双电离室方法测定15MeV中子场内化学样品中的吸收剂量[J]. 辐射研究与辐射工艺学报, 1985,3(2):55-60. DOI：

Lang Shuyu, Zhang Zhonglun, Meng Xiangqin. THE DETERMINATION OF ABSORBED DOSES IN CHEMICAL SAMPLES IN 15 MeV NEUTRON FIELD BY A TWIN CHAMBER METHOD[J]. Journal of Radiation Research and Radiation Processing, 1985,3(2):55-60. DOI：

摘要

本文研究了BPT型指形TE-TE和Mg-Ar电离室的特性。在由T(d，n),4,He反应产生的混合场中，对电离室的各项修正因子进行了实验测定与计算。TE-TE电离室500 V的饱和修正因子为1.007， Mg-Ar电离室200V的饱和修正因子为1.017。在15 MeV中子场中应用双电离室方法测定了葡萄糖和FBX溶液体系(硫酸亚铁-苯甲酸-二甲酚橙）中的吸收剂量。确定了样品中中子吸收剂量与γ射线吸收剂量的比值。并给出了在混合场中中子吸收剂量测量不确定度为±6.3%。

Abstract

The characteristics of the model BPT thimble TE-TE and Mg-Ar ionization chambers have been studied. The correc tion factors of the ionization chambers in mixed field produced by T(d,n) ,4,He reaction were measured and calculated. The saturation correction factors is 1.007 and 1.017 for TE-TE(500V) and Mg-Ar (200V) chambers respectively in the mixed field. The absorbed doses in the samples of glucose and FBX(Ferrous Sulphate-Benzoic acid-Xylenol orange) in 15 MeV neutron field were measured by the twin chamber method. The rations of absorbed doses of neutrons and γ-rays in the samples were presented. The uncertainty of absorbed dose measurement was ±6.3% for the mixed field.

关键词

双电离室方法中子吸收剂量组织等效电离室中子-γ射线混合场

Keywords

Twin chamber mathodNeutron absorbed doseTissue equivalent ionization chamberNeutron -γ ray mixed field

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