会议论文详细信息
2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering
A comparative study of empirical formulas for gamma-ray dose build-up factor in iron and lead materials
材料科学;无线电电子学;计算机科学
Zuo, Yinghong^1 ; Zhu, Jinhui^1 ; Niu, Shengli^1
Northwest Institute of Nuclear Technology, Xi'an
710024, China^1
关键词: Comparative studies;    Empirical formulas;    Gamma ray dose;    Gamma-ray energy;    Shielding materials;    Taylor's formula;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/2/022008/pdf
DOI  :  10.1088/1757-899X/439/2/022008
来源: IOP
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【 摘 要 】

To analyse the difference between different empirical formulas for calculating gamma-ray dose build-up factors, we compared the gamma-ray dose build-up factors calculated according to Taylor's formula and Berger's formula for iron and lead materials. The results show that the differences between the two formulas are related to energies of gamma-ray, shield thicknesses and types of shielding materials. When the energy of gamma-ray and thickness of shield are determined, the gamma-ray dose build-up factor calculated by Taylor's formula is higher than that by Berger's formula for iron material. For lead material, the gamma-ray dose build-up factor calculated by Taylor's formula is lower than that by Berger's formula. Generally speaking, the higher the gamma-ray energy and the thicker the shield material, the greater the difference between the gamma-ray dose build-up factors calculated according to the two empirical formulas.

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