铝、石墨和铅的伽马射线累积因子的计算

Q4 Energy International Journal of Nuclear Energy Science and Technology Pub Date : 2019-04-26 DOI:10.1504/IJNEST.2019.10020880

H. Qadr

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引用次数: 10

摘要

这项工作的目的是研究和量化不同材料的线性衰减系数和堆积因子。石墨等吸收材料的线性衰减系数为（0.097 cm-1），而铝和铅的线性衰减率为（0.136 cm-1）。利用1332keV的60Co源发射的伽马辐射能量，实验值与理论值吻合较好。衰减系数是通过使用良好几何形状和不良几何形状的计数来测量的。结果表明，与石墨和铝相比，铅的线性衰减更高，辐射屏蔽效果更好。此外，堆积因子随着吸收材料厚度的增加而减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Calculation for gamma ray buildup factor for aluminium, graphite and lead

The purpose of this work was to investigate and quantify the linear attenuation coefficient and the buildup factor for different materials. The linear attenuation coefficient of absorber materials such as graphite was (0.097 cm‒1), whereas it was observed (0.136 cm‒1) for aluminium, and lead was (0.596 cm‒1). By using the gamma radiation energies emitted from 60Co source with 1332 keV, experimental and theoretical values are in a good agreement. Attenuation coefficient was measured by using counts of good geometry and bad geometry. The result shows that the linear attenuation is higher for lead and better radiation shielding compared with graphite and aluminium. Furthermore, buildup factor decreases with increasing thickness of the absorber material.

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来源期刊

International Journal of Nuclear Energy Science and Technology Energy-Nuclear Energy and Engineering

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Today, nuclear reactors generate nearly one quarter of the electricity in nations representing two thirds of humanity, and other nuclear applications are integral to many aspects of the world economy. Nuclear fission remains an important option for meeting energy requirements and maintaining a balanced worldwide energy policy; with major countries expanding nuclear energy"s role and new countries poised to introduce it, the key issue is not whether the use of nuclear technology will grow worldwide, even if public opinion concerning safety, the economics of nuclear power, and waste disposal issues adversely affect the general acceptance of nuclear power, but whether it will grow fast enough to make a decisive contribution to the global imperative of sustainable development.