| 基于法国实验客体的X射线准直技术研究 |
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| 引用本文： | 陈楠,高峰,戴曼,戴文华,王敏鸿,王利鸣,周智.基于法国实验客体的X射线准直技术研究[J].强激光与粒子束,2014,26(4):044002-55. |
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| 作者姓名： | 陈楠 高峰 戴曼 戴文华 王敏鸿 王利鸣 周智 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621 900 |
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| 摘 要： | 通过研究法国实验客体(FTO)的闪光照相过程,设计了静态照相过程中采用的准直措施,除传统的一二级准直体外,还通过添加三级准直体来进一步控制入射到客体边缘部分的X射线,从而降低散射的影响。蒙特卡罗方法模拟结果表明,采用三级准直技术可以有效地控制散射的影响,图像接收平面各边界的直散比有了明显的提升。
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| 关 键 词： | 高能闪光照相 法国实验客体 准直技术 蒙特卡罗模拟 三级准直 |
| 收稿时间： | 2013/9/10 |
Collimation technology research based on French Test Object |
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| Affiliation: | 1.Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,P.O.Box 919-106,Mianyang 621900,China |
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| Abstract: | The flash X-ray radiography of the French Test Object (FTO) was studied and a 3-grade collimating system was designed to reduce the generation of scattered background. Except for the traditional 2-grade collimating system, we adopted a third collimator to further control the scattered background. Monte-Carlo simulations suggest that the 3-grade collimating system can effectively control the influence of scattering. The direct-exposure scattered-exposure ratio along each border between different materials can be greatly improved in the accepting plane. |
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| Keywords: | high-energy flash X-ray radiography French Test Object collimation technology Monte Carlo method 3-grade collimating system |
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