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Reflection,Transmission,Absorption Coefficients and Scattering Phase Function of Rabbit Arteries and Veins at He-Ne Laser in Vitro
Pages: 104-107
Year: Issue:  2

Keyword:  He-Ne激光吸收系数血管散射相函数;
Abstract: In the present paper,the characterist ic of laser light transporting in rabbit arteries and veins with the aid of the primary theories of photobiology,elementary medical science and physics were stu died.Diffuse reflectance(R) and transmittance(T) of rabbit arteries and veins samples were me asured by a standard integrating spheres system,using He-Ne laser in 632.8?nm wavelength and the absorbance(A) was deduced.The scattering phase function S( θ) were obtained by the experimental arrangement repacked from a spectroscope at angles from -90° to 90°for rabbit arteries and veins samples in 632.8?nm wavelength and the mean cosines of scatter(μ) was calculated.The resul ts showed that the diffuse reflectance of rabbit arteries was bigger than that o f veins at He-Ne laser(P<0.01).The transmittance of rabbit arteries was obviou sly lesser than that of rabbit veins(P<0.01).The absorption coefficient of rabb it arteries was obviously lesser than that of veins.The optical penetration dept h of rabbit veins was obviously lsser than that of rabbit arteries at He-Ne la ser.Rabbit arteries and veins had stronger backward scattering(μα< 0.5, μν0.5),and that backward scattering of rabbit veins was obviously s tronger than that of rabbit arteries at He-Ne laser.There are obvious differenc e of the scattering phase functions between rabbit arteries and veins at He-Ne laser.There are obvious difference of the optical properties between rabbit arte ries and veins to the reflection,transmission,absoprtion coefficients and scatte ring phase functions of He-Ne laser.It is prompted that should be considered wh en He-Ne laser was applied to treat illness of human artery and vein.
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