| X射线与CsI:Na转换屏作用规律的研究 |
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| 引用本文： | 郭金川,牛憨笨.X射线与CsI:Na转换屏作用规律的研究[J].光子学报,1997,26(10):929-940. |
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| 作者姓名： | 郭金川 牛憨笨 |
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| 作者单位： | 中国科学院西安光学精密机械研究所光电子部!西安，710068，中国科学院西安光学精密机械研究所光电子部!西安，710068 |
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| 摘 要： | 本文用MonteCarlo方法模拟了轫致辐射X光子与CsI:Na转换屏的作用过程.给出了正向散射光子的角分布以及正向出射光子的能谱分布,指出正向散射光子的主要成分是CsI:Na的特征辐射光子,其能量为33.17和35.98keV.此外,还对吸收光子数与管电压和CsI:Na层厚度的关系进行了说明.
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| 关 键 词： | 轫致辐射 正向出射光子 Monte Carlo方法 |
| 收稿时间： | 1996-12-16 |
STUDY OF THE INTERACTION PROCESS OF X-RAYS WITH CsI: Na FLUORESCENT SCREEN |
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| Guo Jinchuan,Niu Hanben.STUDY OF THE INTERACTION PROCESS OF X-RAYS WITH CsI: Na FLUORESCENT SCREEN[J].Acta Photonica Sinica,1997,26(10):929-940. |
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| Authors: | Guo Jinchuan Niu Hanben |
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| Institution: | Xi’an Institute of Optics and Precision Mechanics, Academia Sinica, Xi’an 710068 |
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| Abstract: | The interaction process of bremsstrahlung X rays with CsI: Na fluorescent screen has been simulated with the Monte Carlo method in this paper. The angular distributions of the scattered X rays and the spectrum distributions of forward exit photons are presented,which show that the primary fraction of the scattered radiation is the characteristic radiation of CsI: Na with the energies of 33.17and 35. 98keV. Moreover, the dependence of the absorption properties on the tube voltage and the thickness of CsI: Na screen has been described. |
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| Keywords: | Bremsstrahlung Forward exit photons Monte Carlo method |
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