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 |
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来源: IOP | |
【 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.
【 预 览 】
Files | Size | Format | View |
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A comparative study of empirical formulas for gamma-ray dose build-up factor in iron and lead materials | 237KB | download |