Time Resolved Photon Migration Tomography with a Novel Remote Ultra Low Light Imager (RULLI)

John S. George; David M. Rector; Cheng Ho; Kevin Albright; Clayton Smith; Andreas H. Hielscher

doi:10.1364/IVOI.1999.DIS177

Proceedings of Inter-Institute Workshop on In Vivo Optical Imaging at the NIH
Technical Digest Series (Optica Publishing Group, 1999),
paper DIS177
•https://doi.org/10.1364/IVOI.1999.DIS177

Time Resolved Photon Migration Tomography with a Novel Remote Ultra Low Light Imager (RULLI)

John S. George, David M. Rector, Cheng Ho, Kevin Albright, Clayton Smith, and Andreas H. Hielscher

In Vivo optical Imaging at the NIH 1999

Bethesda, MD United States
16–17 September 1999
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Diffuse Imaging and Spectroscopy (DIS)

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J. S. George, D. M. Rector, C. Ho, K. Albright, C. Smith, and A. H. Hielscher, "Time Resolved Photon Migration Tomography with a Novel Remote Ultra Low Light Imager (RULLI)," in Proceedings of Inter-Institute Workshop on In Vivo Optical Imaging at the NIH, Technical Digest Series (Optica Publishing Group, 1999), paper DIS177.

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Abstract

We describe the design and initial applications of an instrument for time and spatially resolved photon migration tomography. The remote ultra low light imager (RULLI) records photon X, and Y positions, and time with <20 ps resolution. Placing the RULLI detector on one side of a scattering object, and illuminating the other side, measures the time history, amplitude, and positions of photons traveling through the object. Another configuration uses a fiber optic collecting array with elements placed at many locations surrounding the object. Spatial and temporal patterns of photon arrival are recorded from multiple source locations around the object, allowing reconstruction of optical properties of the medium.

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