ISSN 1004-4140
CN 11-3017/P

CTX射线能谱滤过器的优化设计

代秋声, 徐品, 邢晓曼

代秋声, 徐品, 邢晓曼. CTX射线能谱滤过器的优化设计[J]. CT理论与应用研究, 2011, 20(3): 331-338.
引用本文: 代秋声, 徐品, 邢晓曼. CTX射线能谱滤过器的优化设计[J]. CT理论与应用研究, 2011, 20(3): 331-338.
DAI Qiu-sheng, XU Pin, XING Xiao-man. Optimized Design of X-ray Spectrum Filter for CT[J]. CT Theory and Applications, 2011, 20(3): 331-338.
Citation: DAI Qiu-sheng, XU Pin, XING Xiao-man. Optimized Design of X-ray Spectrum Filter for CT[J]. CT Theory and Applications, 2011, 20(3): 331-338.

CTX射线能谱滤过器的优化设计

详细信息
    作者简介:

    代秋声(1977-),男,湖北宜城人,博士,核技术及应用专业,主要从事医疗仪器的研制工作,Tel:0512-69588139,E-mail:daiqsh@163.com

    通讯作者:

    代秋声(1977-),男,湖北宜城人,博士,核技术及应用专业,主要从事医疗仪器的研制工作,Tel:0512-69588139,E-mail:daiqsh@163.com

  • 中图分类号: R814

Optimized Design of X-ray Spectrum Filter for CT

  • 摘要: 采用蒙特卡罗方法对CTX射线能谱滤过器的优化设计进行了研究。使用EGSnrc软件对电子打靶产生X光子的物理过程和X光子穿过不同滤过器的物理过程进行了模拟,从信噪比的角度给出了优化设计的依据和计算公式。结果表明,滤过器设计存在最优化的设计参数,但是在不同的成像条件和成像要求下,其最优化参数是不同的,需要根据具体的条件来确定。
    Abstract: The optimized design of X-ray spectrum filter for computed tomography is studied by Monte Carlo method in this paper. The generation process of X-ray using electron bombardment metal target and the transport process of X-ray through different filters were simulated by EGSnrc software. The formula for optimized design was presented on the basis of signal to noise ratio (SNR). The results show that the optimal parameter for filter design exists, and it is different under different imaging conditions and requirements, which is determined by the actual conditions.
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出版历程
  • 收稿日期:  2011-05-19
  • 网络出版日期:  2022-12-14

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