Study on the characteristics of X-ray spectra in imaging diagnosis using Monte Carlo simulations

被引：2

作者：

Khanh Ai Tran ^{[1
]}

Loan Thi Hong Truong ^{[1
]}

Nhon Van Mai ^{[1
]}

Phuong Nguyen Dang ^{[2
]}

Dung Thi Thuy Vo ^{[3
]}

机构：

[1] VNU HCM Univ Sci, Fac Phys & Engn Phys, Ho Chi Minh City 700000, Vietnam

[2] Univ Freiburg, Inst Phys, D-79085 Freiburg, Germany

[3] Ho Chi Minh City Univ Pedag, Ho Chi Minh City 700000, Vietnam

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2016年 / 69卷 / 07期

关键词：

X-ray spectrum; Simulation; MCNP5; code; DETECTOR; TUBES;

D O I：

10.3938/jkps.69.1168

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

X-rays are widely used in diagnostic imaging such as radiography and computed tomography. An understanding of the X-ray spectrum is essential for estimating the dose absorbed by the patient and for improving image quality. In this research, X-ray emission spectra were investigated by using two different approaches: a Monte Carlo method using the MCNP5 code and a semi-empirical calculation with SpekCalc software. The results were compared with each other to validate the Monte Carlo simulation of the X-ray spectra, so that the simulation model can be applied to estimating the dose rate distribution in X-ray imaging. The obtained results show good agreement between the two approaches, but some divergence is still observed in the characteristic X-ray peaks. In addition, the influence of X-ray tube parameters such as the peak voltage, filter, anode angle and target material on of the beam quality was investigated.

引用

页码：1168 / 1174

页数：7

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