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Radiative transfer theory verified by controlled laboratory experiments

机译：受控实验室实验验证了辐射传输理论

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摘要

We report the results of high-accuracy controlled laboratory measurements of the Stokes reflection matrix for suspensions of submicrometer-sized latex particles in water and compare them with the results of a numerically exact computer solution of the vector radiative transfer equation (VRTE). The quantitative performance of the VRTE is monitored by increasing the volume packing density of the latex particles from 2% to 10%. Our results indicate that the VRTE can be applied safely to random particulate media with packing densities up to ～2%. VRTE results for packing densities of the order of 5% should be taken with caution, whereas the polarized bidirectional reflectivity of suspensions with larger packing densities cannot be accurately predicted. We demonstrate that a simple modification of the phase matrix entering the VRTE based on the so-called static structure factor can be a promising remedy that deserves further examination.
机译：我们报告了Stokes反射矩阵对亚微米级乳胶颗粒在水中的悬浮液进行高精度控制的实验室测量结果，并将其与矢量辐射传递方程（VRTE）的数字精确计算机解决方案的结果进行了比较。通过将胶乳颗粒的体积堆积密度从2％增加到10％，可以监测VRTE的定量性能。我们的结果表明VRTE可以安全地应用于堆积密度高达〜2％的随机颗粒介质。堆积密度约为5％的VRTE结果应谨慎对待，而堆积密度较大的悬浮液的偏振双向反射率无法准确预测。我们证明，基于所谓的静态结构因子对进入VRTE的相位矩阵进行简单修改可以成为有前途的补救方法，值得进一步研究。

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