激光技术2011，Vol.35Issue(4)：551-553,558,4.DOI:10.3969/j.issn.1001-3806.2011.04.027
光源面分布对激光针灸经穴组织的漫反射影响
Diffuse reflection on the acupuncture point under laser acupuncture with different spatial distribution
摘要
Abstract
In order to study the diffuse transmission influence of laser acupuncture with different surface distribution light sources, the image-point-source distribution on meridian tissue is analyzed and diffusion equation of the image-point-source is solved through the use of extrapolation boundary conditions and Green response.Diffuse output models in acupuncture region for different distribution surface light source are obtained by a series responses of virtual points source.Flat, fiber and gauss acupuncture laser are simulated by Monte-Carlo method.The results indicated that: (1) the radial tight energy in three acupuncture without spot mainly was concentrated in the near light source region and coincided when the radial distance to more than 0.135cm, and axial light energy showed a negative exponential decay in flat and gauss acupuncture and linear decline in fiber source; (2) when surface light source existed circular or ring spot, the diffuse was inversely proportional to the spot area,especially the diffuse of circular spot being larger than the ring spot under the same spot area, and diffuse reflectance curve had a significant distortion at the vertical projection and was inversely propertional to the distance outside the projection, especially when the distance to 0.5 times of the spot radius the curve distortion being basically eliminated.The results may provide a useful reference for light source selection and acupuncture location of acupuncture points.关键词
医用光学与生物技术/面光源针灸/蒙特卡罗/漫反射Key words
medical optics and biotechnology/ surface laser acupuncture/ Monte-Carlo/ diffuse reflection分类
生物科学引用本文复制引用
秦建华,余重秀,谭永红,苏密勇,王子民..光源面分布对激光针灸经穴组织的漫反射影响[J].激光技术,2011,35(4):551-553,558,4.基金项目
国家自然科学基金资助项目(60971004) （60971004）
