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Proceedings Paper

Comparison of two time-resolved detectors for diffuse optical tomography: photomultiplier tube--time-correlated single photon counting and multichannel streak camera
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Paper Abstract

Two experimental setups for time-resolved diffuse optical tomography (DOT) are described. The first involves a titanium-sapphire laser and a streak camera in a synchroscan mode. A multiple-arm light guide allows to measure simultaneously the temporal profiles of photons re-emitted at different boundary sites of the objects studied. The second one uses picosecond laser diodes and a multiple-anode micro-channel plate photomultiplier tube followed by parallel time-correlated single photon counting channels. The two instruments are described and their main specifications compared: instrument response and time resolution, sweep time, temporal stability, sensitivity and its inter-channel variation, cross-talk between adjacent channels. We will also discuss detector-specific data analysis prior to image reconstruction. Both instruments have been tested with phantoms simulating tissues and the absorption and reduced scattering images obtained have been compared.

Paper Details

Date Published: 29 July 2003
PDF: 10 pages
Proc. SPIE 4955, Optical Tomography and Spectroscopy of Tissue V, (29 July 2003); doi: 10.1117/12.476841
Show Author Affiliations
Patrick Poulet, Univ. Louis Pasteur (France)
Chantal Virginie Zint, Univ. Louis Pasteur (France)
Murielle Torregrossa, Univ. Louis Pasteur (France)
Wilfried Uhring, Lab. Physique et Applications des Semi-conducteurs, CNRS (France)
Bernard Cunin, Lab. Physique et Applications des Semi-conducteurs, CNRS (France)

Published in SPIE Proceedings Vol. 4955:
Optical Tomography and Spectroscopy of Tissue V
Britton Chance; Robert R. Alfano; Bruce J. Tromberg; Mamoru Tamura; Eva M. Sevick-Muraca, Editor(s)

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