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非均匀生物组织中光子迁移的数值方法 被引量:6

A Numerical Method for Photon Migration in Heterogeneous Bio-Tissue
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摘要 导出了一种研究光子在非均匀生物组织中迁移规律的数值方法 ,并验证该方法的精确性 ,进一步研究了非均匀生物组织中扩散系数对反射和透射光通量的影响 ,结果表明扩散系数的非均匀性对光反射和透射的影响不可忽略。 A numerical method for photon migration in heterogeneous bio tissue is derived and verified. The effects of heterogeneous diffusion coefficient on the fluence rate (reflectance and transmittance ) are investigated. The result shows that this effect cannot be neglected.
出处 《光学学报》 EI CAS CSCD 北大核心 2003年第7期860-864,共5页 Acta Optica Sinica
基金 国家自然科学基金 (598362 4 0 ) 国家杰出青年科学基金(60 0 2 551 4 )资助课题
关键词 生物光学 光子迁移 光子扩散方程 非均匀生物组织 数值方法 扩散系数 反射 透射 光通量 逐次超松弛迭代法 Crank-Nicholson隐式算法 biological optics photon migration photon diffusion equation Crank Nicholson implicit algorithm successive over relaxation iteration
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