X-ray spectra and doses

被引：9

作者：

Lizbeth Rodriguez-Ibarra, Johanna ^{[1
]}

Luis Hernandez-Adame, Pablo ^{[1
]}

Rene Vega-Carrillo, Hector ^{[1
]}

Rivera, Teodoro ^{[2
]}

机构：

[1] Univ Autonoma Zacatecas, Unidad Acad Estudios Nucl, C Cipres 10, Fracc La Penuela 98068, Zacatecas, Mexico

[2] CICATA IPN Unidad Legaria, Calzada Legaria 694, Mexico City 11500, DF, Mexico

来源：

APPLIED RADIATION AND ISOTOPES | 2016年 / 117卷

关键词：

X-ray; Spectrum; Kerma; Ambient dose equivalent; Personal dose equivalent; Monte Carlo; MONTE-CARLO; MAMMOGRAPHY; DOSIMETRY;

D O I：

10.1016/j.apradiso.2016.04.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Using the Monte Carlo method the x-ray spectrum produced by 150 keV electrons colliding with W, Rh and Mo targets were calculated. The x-ray spectra were calculated to 20, 50, and 100 cm from the focal point. In order to analyze the effect of the filter, calculations were carried out with and without filter. The spectra were used to estimate the Kerma in air, the Ambient dose equivalent, and the Personal dose equivalent. The spectra were integrated in energy to obtain the total photon fluences. Calculated spectra depend on the type of target having the continuous spectrum due to bremsstrahlung and the characteristics x-rays. The Al filter eliminates the low-energy photons; however no effect is noticed when the photon energy is larger than 40 keV. The largest effect of dose reduction due to the filter was noticed to 20 cm for the Kerma in air. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：32 / 35

页数：4

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