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为了解正常肺和肺癌组织的光学特性，在原有工作基础上，应用自行研制的“光纤探针深度计”联合光纤探测系统，实现了Ｈｅ－Ｎｅ激光６３２．８ｎｍ波长辐射下，新鲜离体人肺组织光能流率及其表面漫反射率的精确测定。获得该重要波长处人肺组织光能流率的分布规律及其光学特性参数的数值：（１）人肺腺鳞癌组织的吸收系数μａ＝０．０９ｍｍ－１，有效散射系数μ＇ｓ＝１．１９ｍｍ－１，有效衰减系数μｅｆｆ＝０．５９ｍｍ－１，光穿透深度δ＝１．７０ｍｍ；（２）人正常肺组织的吸收系数μａ＝０．１５ｍｍ－１，有效散射系数μ＇ｓ＝１．４２ｍｍ－１，有效衰减系数μｅｆ＝０．８４ｍｍ－１，光穿透深度δ＝１．１９ｍｍ，并将结果与现有相应肺组织的光学特性参数数据作了比较。该测量方法亦可用于人体其他组织光学特性的测量
In order to understand the optical characteristics of normal lung and lung cancer tissues, based on the original work, a self-developed “fiber probe depth gauge” combined with a fiber detection system was used to achieve the effects of He-Ne laser radiation at a wavelength of 632.8 nm. Precise Measurement of Light Flow Rate and Surface Diffuse Reflectance in Lung Tissues The distribution of optical energy flow rate and the optical parameters of human lung tissue at this important wavelength were obtained: (1) The absorption coefficient of human lung adenosquamous carcinoma tissue μa = 0.09 mm-1, effective scattering coefficient μ’s = 1.19 mm-1, effective attenuation coefficient μeff = 0.59 mm-1, light penetration depth δ = 1.70 mm; (2) normal human lung absorption coefficient μa = 0.15 mm-1, effective scattering coefficient μ’ s = 1.42 mm-1, effective attenuation coefficient μEF = 0.84 mm-1, light penetration depth δ = 1.19 mm, and the results were compared with those of the corresponding lung tissue. The measurement method can also be used to measure the optical properties of other human tissues