组织模拟液Intralipid-10%的吸收系数和各向异性因子的测量  

Measurements of Absorption and Anisotropy Coefficients in Fat Emulsion Intralipid-10%

作　　者：张琳[1,2] 张春平[2] 

机构地区：[1]华北科技学院基础部,北京101601 [2]南开大学物理学院,天津300071

出　　处：《发光学报》2009年第6期858-861,共4页Chinese Journal of Luminescence

基　　金：国家自然科学基金(60578020)资助项目

摘　　要：用加吸收体法测量了组织模拟液Intralipid-10%的吸收系数和各向异性因子。运用漫射理论研究了点光源在无限大介质中的各向异性散射,实验结果得到(μa/D)～(1/2)的多个测量值的标准偏差小于0.6%,测量值与拟合值的残差方均根值为0.1%。标准偏差和残差的值表明了测量值的准确度。The absorption and anisotropy coefficients of the fat emulsion Intralipid-10% were measured. An adding-absorber method was used for measurement of absorption and anisotropy coefficients of the Intralipid- 10%. Using the diffusion theory which has been extended to include anisotropy scattering for a point-source in infinite-medium geometry, the standard deviations of muhiple measurements for √μa/D are less than 0. 6% and the residuals between the measured data and the fits have rms values of O. 1%, where μa is the absorbing coefficient of the solution in our experiment and D is the diffusion coefficient of the medium. The values of the standard deviations and the residuals demonstrate the high precision of the measurements.

关 键 词：吸收系数 各向异性因子 加吸收体法 

分 类 号：Q682[生物学—生物物理学] O436.2[机械工程—光学工程]