Light penetration in human and rabbit brains: measurements using an isotropic detector

Ivan S. Melnik; Igor Kravchenko; Vladimir D. Rozumenko

doi:10.1117/12.168035

1 February 1994 Light penetration in human and rabbit brains: measurements using an isotropic detector

Ivan S. Melnik, Igor Kravchenko, Vladimir D. Rozumenko

Author Affiliations +

Proceedings Volume 2077, Laser Interaction with Hard and Soft Tissue; (1994) https://doi.org/10.1117/12.168035
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

Light attenuation in a sample of human brain has been measured using a small (0.5 mm in diameter) fiber isotropic detector and similar to that an isotropic irradiator. Two lasers, He-Ne (633 nm) and GaAs (890 nm), were used. In vivo measurements were performed with rabbit brain. Penetration depth of 633 nm light was 1.3 mm and 2.4 mm respectively for human and rabbit brain. Propagation of 890 nm light was significantly higher, penetration depth was 2.8 mm for human tissue and 5.3 for rabbit.

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Ivan S. Melnik, Igor Kravchenko, and Vladimir D. Rozumenko "Light penetration in human and rabbit brains: measurements using an isotropic detector", Proc. SPIE 2077, Laser Interaction with Hard and Soft Tissue, (1 February 1994); https://doi.org/10.1117/12.168035

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