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Mitic, G.; Koelzer, J.; Otto, J.; Plies, E.; Soelkner, G. and Zinth, Wolfgang (1. February 1994): Time-resolved transillumination of turbid media. In: SPIE (ed.) , Proceedings of quantification and localization using diffuse photons in a highly scattering medium : 3 - 5 September 1993, Budapest, Hungary. Vol. 2082. Bellingham, Wash: pp. 26-32 [PDF, 1MB]

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The suitability and limits of time-resolved transillumination to determine inner details of biological tissues are investigated by phantom experiments. The achievable improvement is demonstrated by using different phantoms (absorbing objects embedded in a turbid medium). By means of line-scans across a sharp edge the spatial resolution and its dependence on temporal resolution can be determined. To demonstrate the physical resolution according to the Rayleigh-criterion, measurements were performed on blackened bead pairs. Investigations with partially transparent beads demonstrate the high sensitivity of time-resolving techniques with respect to variations in scattering or absorption coefficients.

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