PGNAA系统测定土壤重金属污染的Fluka模拟

IF 0.7 4区物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Nukleonika Pub Date : 2020-03-01 DOI:10.2478/nuka-2020-0002

Can Zhang, Jianbo Yang, Rui Li, Yujie Qiao, Xu Zhang, Jie Xu

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引用次数: 1

摘要

摘要本研究提出了一个自行设计的瞬发γ中子活化分析（PGNAA）模型，并用Fluka模拟方法模拟了土壤样品中的重金属（Mn、Cu、Hg、Ni、Cr、Pb）。得到了各重金属的瞬时γ射线产量与土壤厚度、土壤中重金属含量和源距之间的关系。模拟结果表明，随着土壤厚度的增加，各重金属的瞬时γ射线产量增加，并在18cm时达到饱和。重金属在土壤中的比例越大，瞬时γ射线的产量就越大。最高含量约为3%，中子源与土壤样品之间距离的变化不影响重金属的即时γ射线产率。

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Fluka simulation of PGNAA system for determining heavy metal pollution in the soil sample

Abstract This study presented a self-designed prompt gamma neutron activation analysis (PGNAA) model and used Fluka simulation to simulate the heavy metals (Mn, Cu, Hg, Ni, Cr, Pb) in soil samples. The relationship between the prompt γ -ray yield of each heavy metal and soil thickness, content of heavy metals in the soil, and source distance was obtained. Simulation results show that the prompt γ -ray yield of each heavy metal increases with the increase in soil thickness and reaches saturation at 18 cm. The greater the proportion of heavy metals in the soil, the greater the prompt γ -ray yield. The highest content is approximately 3%, and the change in distance between the neutron source and soil sample does not affect the prompt γ -ray yield of heavy metals.

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来源期刊

Nukleonika 物理-无机化学与核化学

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.