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Calculation of Photon Path Distribution Based on Photon Behavior Analysis in a Scattering Medium

  • ENVIRONMENTAL, BIOLOGICAL, AND SPACE OPTICS
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Abstract

We calculated the photon path distribution (PPD) in a scattering medium based on a theoretical analysis, which utilizes the relationship between the photon intensity and photon pathlength. This PPD is defined by local photon pathlengths for photons having total pathlengths of l between the light input points and detection points. The PPD of photons that consist of the impulse response at time t (= l/c) was calculated for a 2-D model. Precise analysis of photon migration in the scattering medium is essential in order to carry out image reconstruction of diffuse optical tomography (DOT). We show the PPD at time t (the total pathlength l = ct) and demonstrate its effectiveness. Our method for describing photon migration is intuitive and allows finding weight functions in DOT.

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Authors and Affiliations

  1. Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita, Shizuoka, 434-8601, Japan

    Yukio Ueda, Kazuyoshi Ohta, Yutaka Yamashita & Yutaka Tsuchiya

Authors
  1. Yukio Ueda
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  2. Kazuyoshi Ohta
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  3. Yutaka Yamashita
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  4. Yutaka Tsuchiya
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Ueda, Y., Ohta, K., Yamashita, Y. et al. Calculation of Photon Path Distribution Based on Photon Behavior Analysis in a Scattering Medium. OPT REV 10, 444–446 (2003). https://doi.org/10.1007/s10043-003-0444-6

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  • DOI: https://doi.org/10.1007/s10043-003-0444-6

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