Survey and design of an irradiation setup for measuring the amount of heavy water in a sample

Khabaz Rahim; Izadpanah Abdolmajid

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Survey and design of an irradiation setup for measuring the amount of heavy water in a sample

机译：测量和设计样品中重水量的辐照装置的调查和设计

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An irradiation system, which works based on photodisintegration reaction of deuterium, has been evaluated for determination of heavy water in water samples. This irradiation system was designed by simulation with MCNPX code, considering some gamma point-like sources placed in the center of sample, and then counting the created neutrons by the long cylindrical BF3 counter. For increasing the neutron counting efficiency, an optimization was performed for thickness of various moderators considered between the sample and thermal detector. To investigate the practical effectiveness of the designed system, a model apparatus was built for routine use in measurement of a wide range of heavy water concentrations. It was successfully applied for weight percentages larger than 0.5 % to observe the acceptable detection sensitivity of D2O with an error less than 0.24 %.

机译：已经评估了一种基于氘的光分解反应的辐照系统，用于测定水样中的重水。该辐照系统是通过使用MCNPX代码进行模拟设计的，考虑了放置在样品中心的一些伽玛点状源，然后通过长圆柱BF3计数器对产生的中子进行计数。为了提高中子计数效率，对样品和热探测器之间考虑的各种调节剂的厚度进行了优化。为了研究所设计系统的实际有效性，构建了一种模型设备，用于常规范围内的各种重水浓度的测量。它已成功应用于大于0.5％的重量百分比，以观察D2O可接受的检测灵敏度，且误差小于0.24％。

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《Journal of Radioanalytical and Nuclear Chemistry: An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry》 |2015年第1期|共6页
作者
Khabaz Rahim; Izadpanah Abdolmajid;
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正文语种 eng
中图分类物理化学（理论化学）、化学物理学;
关键词
Photoneutron; Gamma sources; Deuterium; Concentration; BF3 counter; MCNPX;

机译：光中子;伽马射线源;氘;浓度;BF3计数器;MCNPX;

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1. Survey and design of an irradiation setup for measuring the amount of heavy water in a sample [J] . Khabaz Rahim, Izadpanah Abdolmajid Journal of Radioanalytical and Nuclear Chemistry: An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry . 2015,第1期

机译：测量和设计样品中重水量的辐照装置的调查和设计
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8. HEAVY WATER ORGANIC COOLED REACTOR. EXP-NRU-305 EXPERIMENT DESIGN AND IRRADIATION, [R] . culley, g. e. leblanc, j. g. 1967

机译：重水有机冷却反应器。 EXp-NRU-305实验设计和辐射，

Survey and design of an irradiation setup for measuring the amount of heavy water in a sample

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