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Volume 24 Issue 6
Sep.  2013
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Citation:
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Transmittance absorption coefficients and scattering phase functions of human artery and vein for He-Ne laser

  • 1.

    Dept. of Physics, Guangdong College of Pharmacy, Guangzhou, 510224;

  • 2.

    Dept. of Laser Medicine, Sun Yat-sen University of Medical Sciences, Guan gzhou, 510089;

  • 3.

    Frist Affiliated Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou, 510080

  • Received Date: 1999-09-08
    Accepted Date: 1999-09-08
  • The paper present an investigation on the characteristic of laser light transporting in human artery and vein with the aid of the primary theories of photo-biology,elementary medical science and physics. Diffuse reflectance R and transmittance T of human artery and vein samples is measured by a standard integrating spheres system,using He-Ne laser in 632.8nm wavelength and the absorbance A was deduced. The scattering phase function S(θ) is obtained by the experimental arrangement repacked from a spectroscope at angles from -90°to 90°for human artery and vein samples in 632.8nm wavelength and the mean cosines of scatter μ was calculated. The results show that the attenuation of the transmitted light intensity with sample thickness satisfy exponential attenuation by low power(P<20mW) laser radiation for human artery and vein and scattering of light in human artery and vein is highly converse peaked.
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    Faught W E,Lawrence P F.Surgery Clinics in North America,1992;72(3):681
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    Graaff R,Dassel A C M,Koelink M H et al. Appl Opt,1993;32(4):435
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    [7] 徐清,成柏华,朱雅芬etal．激光生物学,1996;5:817
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    [9] 孟继武,任新光.中国激光医学杂志,1998;7(3):178～179
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Transmittance absorption coefficients and scattering phase functions of human artery and vein for He-Ne laser

  • 1. Dept. of Physics, Guangdong College of Pharmacy, Guangzhou, 510224;
  • 2. Dept. of Laser Medicine, Sun Yat-sen University of Medical Sciences, Guan gzhou, 510089;
  • 3. Frist Affiliated Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou, 510080
  • Received Date: 1999-09-08
  • Accepted Date: 1999-09-08
  • Available Online: 2000-11-25

Abstract: The paper present an investigation on the characteristic of laser light transporting in human artery and vein with the aid of the primary theories of photo-biology,elementary medical science and physics. Diffuse reflectance R and transmittance T of human artery and vein samples is measured by a standard integrating spheres system,using He-Ne laser in 632.8nm wavelength and the absorbance A was deduced. The scattering phase function S(θ) is obtained by the experimental arrangement repacked from a spectroscope at angles from -90°to 90°for human artery and vein samples in 632.8nm wavelength and the mean cosines of scatter μ was calculated. The results show that the attenuation of the transmitted light intensity with sample thickness satisfy exponential attenuation by low power(P<20mW) laser radiation for human artery and vein and scattering of light in human artery and vein is highly converse peaked.

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