{"title":"在扩散介质中对散射变化的反射灵敏度","authors":"Xiaojuan Zhang, Y. Liu","doi":"10.1117/12.741351","DOIUrl":null,"url":null,"abstract":"The sensitivity expression of spatial-resolved diffuse reflectance to scattering parameter is deduced in the P3 approximation model, and the influence of scattering parameter on the reflectance is analyzed using this expression. The results show that the sensitivity is distinct with that of the diffusion approximation in the region of about one transport mean free path, and optimum source-detector distance where the sensitivity to scattering parameter equals zero differs from the diffusion approximation's too.This optimum source-detector distance is found shortened when a medium has bigger scattering coefficient or bigger absorption coefficient. The research is very valuable for in vivo measurement based on the spatial-resolved diffuse reflectance.","PeriodicalId":110373,"journal":{"name":"International Conference on Photonics and Imaging in Biology and Medicine","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sensitivities of reflectance to scattering variations in a diffusive medium\",\"authors\":\"Xiaojuan Zhang, Y. Liu\",\"doi\":\"10.1117/12.741351\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The sensitivity expression of spatial-resolved diffuse reflectance to scattering parameter is deduced in the P3 approximation model, and the influence of scattering parameter on the reflectance is analyzed using this expression. The results show that the sensitivity is distinct with that of the diffusion approximation in the region of about one transport mean free path, and optimum source-detector distance where the sensitivity to scattering parameter equals zero differs from the diffusion approximation's too.This optimum source-detector distance is found shortened when a medium has bigger scattering coefficient or bigger absorption coefficient. The research is very valuable for in vivo measurement based on the spatial-resolved diffuse reflectance.\",\"PeriodicalId\":110373,\"journal\":{\"name\":\"International Conference on Photonics and Imaging in Biology and Medicine\",\"volume\":\"24 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-05-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Photonics and Imaging in Biology and Medicine\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.741351\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Photonics and Imaging in Biology and Medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.741351","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Sensitivities of reflectance to scattering variations in a diffusive medium
The sensitivity expression of spatial-resolved diffuse reflectance to scattering parameter is deduced in the P3 approximation model, and the influence of scattering parameter on the reflectance is analyzed using this expression. The results show that the sensitivity is distinct with that of the diffusion approximation in the region of about one transport mean free path, and optimum source-detector distance where the sensitivity to scattering parameter equals zero differs from the diffusion approximation's too.This optimum source-detector distance is found shortened when a medium has bigger scattering coefficient or bigger absorption coefficient. The research is very valuable for in vivo measurement based on the spatial-resolved diffuse reflectance.
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