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High-resolution angle-resolved measurements of light scattered at small angles by red blood cells in suspension

机译：悬浮液中红细胞以小角度散射光的高分辨率角度分辨测量

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Red blood cells (RBCs) scatter light mainly in the forward direction, where the scattering phase function has a narrow peak. We performed an experimental investigation into the angular distribution of light scattered by blood in the small-angle domain. A highly diluted suspension of RBCs (hematocrits in the range 5 X 10~(-5)-10~(-2)) was illuminated with a He-Ne laser with 633 nm wavelength. We focused our research on two main topics: the scattering efficiency of the RBCs given by the mean scattering cross section and the scattering anisotropy obtained from the angular distribution of the scattered photons. The collimated beam transmission and the angular distribution of scattered light were measured and compared with the predictions of the effective phase function model. The RBCs' mean scattering cross section and scattering anisotropy were obtained by fitting of the experimental data.
机译：红细胞（RBC）主要在向前方向散射光，其中散射相位函数的峰很窄。我们对小角度域中血液散射的光的角度分布进行了实验研究。用波长为633 nm的He-Ne激光照亮高度稀释的RBC悬浮液（在5 X 10〜（-5）-10〜（-2）范围内的血细胞突变）。我们的研究集中在两个主要主题上：由平均散射截面给出的RBC的散射效率和从散射光子的角度分布获得的散射各向异性。测量准直光束的透射率和散射光的角度分布，并将其与有效相位函数模型的预测值进行比较。 RBC的平均散射截面和散射各向异性是通过拟合实验数据获得的。

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