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首页> 外文会议>IEEE Nuclear Science Symposium >A Monte Carlo simulator dedicated to a time-resolved optical tomographic modality based on the Henyey-Greenstein phase function
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A Monte Carlo simulator dedicated to a time-resolved optical tomographic modality based on the Henyey-Greenstein phase function

机译：一个蒙特卡罗模拟器，专用于基于Henyey-Greenstein相位函数的时间分辨的光学断层塑料

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The current work focuses on the Time-Resolved Optical Tomographic (TROT) modality and mainly studies the scattering process that takes place in a diffusing medium like tissue when Near-Infrared radiation propagates through it. Additionally, it handles the time filtering which is necessary to be performed on the detected photons in order to gain the anatomical information of an area under investigation. The Near-Infrared radiation that is utilized in this type of imaging technique is mainly followed by Mie (forward peaked) type of scattering which causes the majority of the photons to get diffused. A small fraction of those photons remain forward scattered and only by proper time filtering can be resolved; they provide the correct anatomical information of the medium. In order to investigate this mechanism, a Monte Carlo simulator program, named PHOSIM, has been developed. This software package is based on the Henyey-Greenstein phase function which in a macroscopic way can undoubtedly approximate the microscopic character of the process that gives rise to Mie type of scattering.
机译：目前的工作侧重于时序的光学断层（小跑）模式，主要研究当近红外辐射通过它时在漫射介质中发生的散射过程。另外，它处理在检测到的光子上执行的时间过滤，以便获得正在研究的区域的解剖学信息。在这种成像技术中使用的近红外辐射主要是MIE（前向峰值）散射类型，这导致大部分光子被扩散。这些光子的小部分仍然是向前散射的，并且只能通过适当的时间过滤;它们提供了培养基的正确解剖信息。为了调查这种机制，已经开发出名为Phosim的蒙特卡罗模拟器程序。该软件包基于Henyey-Greenstein相位函数，其在宏观的方式中可以无疑是近似近似的过程的显微性质，这导致MIE散射类型。

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