墨西哥手工砖的辐射屏蔽和剂量学参数。

Radiation shielding and dosimetric parameters of mexican artisanal bricks.

机构信息

TecNM, Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos 1801 Ote, Fracc. Bona Gens, 20256, Aguascalientes, Ags, Mexico.

Unidad Académica de Estudios Nucleares de La Universidad Autónoma de Zacatecas, C. Ciprés 10, Fracc. La Peñuela, 98068, Zacatecas, Zac, Mexico.

出版信息

Appl Radiat Isot. 2022 Oct;188:110355. doi: 10.1016/j.apradiso.2022.110355. Epub 2022 Jul 10.

DOI:10.1016/j.apradiso.2022.110355

PMID:35841850

Abstract

In this work, were determined some radiation shielding and dosimetric parameters of three types of bricks for photons energy from 1 keV to 100 GeV photons using the Phy-X/PSD software, and for comparison also has been calculated the same parameters for NBS concrete. The parameters calculated are the linear attenuation coefficients (LAC), effective atomic numbers (Zeff), half value layers (HVL), the energy absorption buildup factors (EABF) and the exposure buildup factors (EBF), as well as the coefficients to use the geometric progression (G-P) fitting method. Obtained results show that the three types of bricks can be used safely for the design of medical facilities housing mammography units (less than 30 keV).

摘要

在这项工作中，使用 Phy-X/PSD 软件确定了三种类型的砖在 1keV 至 100GeV 光子能量范围内的光子辐射屏蔽和剂量学参数，并进行了比较，还计算了 NBS 混凝土的相同参数。计算的参数是线性衰减系数（LAC）、有效原子数（Zeff）、半价层（HVL）、能量吸收积累因子（EABF）和曝光积累因子（EBF），以及使用几何级数（G-P）拟合方法的系数。得到的结果表明，这三种类型的砖可安全用于设计容纳乳腺摄影设备的医疗设施（低于 30keV）。