%0 Journal Article
%T Theoretical and experimental study of the intensity distribution in biological tissues
%A Xu Tang
%A Zhang Chun-Ping
%A Chen Gui-Ying
%A Tian Jian-Guo
%A Zhang Guang-Yin
%A Zhao Cheng-Mei
%A <br>许　棠
%A 张春平
%A 陈桂英
%A 田建国
%A 张光寅
%A 赵承梅
%J 中国物理 B
%D 2005
%I 
%X Based on the diffusion approximate theory (DA), a theoretical model about the distribution of the intensity of a narrow collimation beam illuminating on a semi-infinite biological tissue is developed. In order to verify the correctness of the model, a novel method of measuring the distributions of the intensity of light in Intralipid-10% suspension at 650 nm is presented and measurements of the distributions of the distance-dependent intensity of scattering light in different directions are made. The investigations show that the results from our diffusion model are in good agreement with the experimental results beyond and in the areas around the light source, and the distance-dependent intensity in the incident direction attenuates approximately in the exponential form. Furthermore, our theoretic results indicate the anisotropic characteristics of the intensity in different directions of scattering light inside the biological tissue.
%K biological tissue
%K light distribution
%K radiation intensity<br>生物组织
%K 亮度分布
%K 发散强度
%K 扩散理论
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=F775302A55E8B3E86A0D6200DC0F9FCB&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=9CF7A0430CBB2DFD&sid=D217FECA03012AA9&eid=5A8DDE4CFC853172&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=10