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Characteristics and applications of two-dimensional light scattering by cylindrical tubes based on ray tracing

机译：基于射线追踪的圆柱管二维光散射特性及应用

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摘要

The intensity distribution of light scattered by a capillary tube filled with a liquid is studied using geometrical optics or ray tracing. Several intensity step points are found in the scattering pattern due to contributions from different geometrical rays. The scattering angles of these intensity step points vary with the capillary parameters, i.e., with the inner and outer radii of the capillary wall and the refractive indices of the liquid and the wall material. The relations between the scattering angles of the step points and the capillary parameters are analyzed using the reflection law and Snell's law. A method is developed to determine the capillary parameters from measurements of the scattering angles of the step points. An experiment is designed to provide measured data from which the capillary parameters can be obtained by the proposed method. It is shown that this method provides capillary parameters of high precision.
机译：使用几何光学或射线追踪研究了填充有液体的毛细管散射的光的强度分布。由于来自不同几何射线的贡献，在散射图案中发现了几个强度阶跃点。这些强度阶跃点的散射角随毛细管参数即毛细管壁的内半径和外半径以及液体和壁材料的折射率而变化。利用反射定律和斯涅尔定律分析了台阶点的散射角与毛细管参数之间的关系。开发了一种根据阶跃点的散射角的测量确定毛细管参数的方法。设计实验以提供测量数据，通过所提出的方法可以从中获得毛细管参数。结果表明，该方法提供了高精度的毛细管参数。

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