Photon transport through the entire adult human head
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866916530388729856 |
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| author | Radford, Jack Gradauskas, Vytautas Mitchell, Kevin J. Nerenberg, Samuel Starshynov, Ilya Faccio, Daniele |
| author_facet | Radford, Jack Gradauskas, Vytautas Mitchell, Kevin J. Nerenberg, Samuel Starshynov, Ilya Faccio, Daniele |
| contents | Optical brain imaging technologies are promising due to their relatively high temporal resolution, portability and cost-effectiveness. However, the highly scattering nature of near-infrared light in human tissue makes it challenging to collect photons emerging from more than 4 cm below the scalp, or with source-detector separation larger than several centimeters. We explore the physical limits of photon transport in the head and show that despite an extreme attenuation of ~10^(18), we can experimentally detect light that is transmitted diametrically through the entire adult human head. Analysis of various photon migration pathways through the head also indicates how the source-detector configuration can be used to isolate photons interacting with deep regions of the brain that are inaccessible with current optical techniques. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01360 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Photon transport through the entire adult human head Radford, Jack Gradauskas, Vytautas Mitchell, Kevin J. Nerenberg, Samuel Starshynov, Ilya Faccio, Daniele Optics Optical brain imaging technologies are promising due to their relatively high temporal resolution, portability and cost-effectiveness. However, the highly scattering nature of near-infrared light in human tissue makes it challenging to collect photons emerging from more than 4 cm below the scalp, or with source-detector separation larger than several centimeters. We explore the physical limits of photon transport in the head and show that despite an extreme attenuation of ~10^(18), we can experimentally detect light that is transmitted diametrically through the entire adult human head. Analysis of various photon migration pathways through the head also indicates how the source-detector configuration can be used to isolate photons interacting with deep regions of the brain that are inaccessible with current optical techniques. |
| title | Photon transport through the entire adult human head |
| topic | Optics |
| url | https://arxiv.org/abs/2412.01360 |