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第二炮兵工程大学,西安,710025
[ "作者简介:过惠平,男,1962年出生,2008年第二炮兵工程大学获博士学位,教授,主要从事核辐射监测及防护方面研究" ]
[ "通讯作者: 吕汶辉 E-mail:lvwenhui10@163.com" ]
纸质出版日期:2014-01-20
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过惠平, 吕汶辉, 吕 宁, 等. 不同能量X和γ射线剂量等效性影响因素的蒙特卡罗方法研究[J]. 核技术, 2014,37(1):010203
GUO Huiping, LYU Wenhui, LYU Ning, et al. Influencing factors of dose equivalence for X and γ rays with different energy based on Monte Carlo[J]. Nuclear techniques, 2014, 37(1): 010203
过惠平, 吕汶辉, 吕 宁, 等. 不同能量X和γ射线剂量等效性影响因素的蒙特卡罗方法研究[J]. 核技术, 2014,37(1):010203 DOI: 10.11889/j.0253-3219.2014.hjs.37.010203.
GUO Huiping, LYU Wenhui, LYU Ning, et al. Influencing factors of dose equivalence for X and γ rays with different energy based on Monte Carlo[J]. Nuclear techniques, 2014, 37(1): 010203 DOI: 10.11889/j.0253-3219.2014.hjs.37.010203.
X、γ射线的广泛应用使得剂量仪器测量的准确性亟待解决,采用X射线机代替标准γ源对剂量仪器进行标校时需要了解其等效性影响因素。为研究低能X射线与天然放射源等效过程中的修正项,采用蒙特卡罗(Monte Carlo
MCNP)软件对低能X射线与高能X、γ射线等效性的影响因素进行了模拟,得出了距离、空间散射、探测器响应对剂量等效的不同影响,最后对模拟结果进行了分析。该结论可用于低能X射线与高能X、γ射线源之间的等效修正,对于X射线的广泛应用具有重要意义。
Background: The accuracy of dosimeter measurement of X and γ rays needs to be resolved. Purpose: The aim is to study the correction term of the equivalent process of low-energy X-ray and the natural radioactive source. Methods: Instead of the standard sources
X-ray machine was adopted on the dose instrument calibration. The influence factors of the equivalence between low-energy X-ray and high-energy X or γ rays were simulated using Monte Carlo (MCNP) software. Results: The influences of distance
space scattering
response of detector on dose equivalence were obtained. The simulation results were also analyzed. Conclusion: The method can be used in dose equivalent correction for low-energy X-ray
high-energy X or γ rays
which is significant for the widespread use of X rays.Cited
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