Photon transport through the entire adult human head
2024/12/02 by Jack Radford, Radford, Jack, Vytautas Gradauskas +9 · 5 voices
Medicine · #Radiation Dose and Imaging
paper · pdf · doi:10.48550/arxiv.2412.01360
Abstract
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.
Discussions
- New preprint out. Light transmitted diametrically and detected through the human head. This was a lot (lot) harder than it sounds.
arxiv.org/abs/2412.01360 [bsky, 13 points, 2 comments]
- #arXiv Photon transport through the entire adult human head https://arxiv.org/abs/2412.01360 despite an extreme attenuation of ~10¹⁸, experimental detection of light transmitted diametrically through [bsky, 7 points, 0 comments]
- A cool study by Radford et al. that shows it is possible to pass near-infrared photons through an entire human head! Interestingly, the photons preferentially take trajectories through the cerebrospin [bsky, 2 points, 0 comments]
- #arXiv Photon transport through the entire adult human head https://arxiv.org/abs/2412.01360 despite an extreme attenuation of ~10¹⁸, experimental detection of light transmitted diametrically through [bsky, 1 points, 0 comments]
- # arXiv Photon transport through the entire adult human head https:// arxiv.org/abs/2412.01360 despite an extreme attenuation of ~10¹⁸, experimental detection of light transmitted diametrically throug [mastodon, 0 points, 0 comments]
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