Characterization of a time-resolved non-contact scanning diffuse optical imaging system exploiting fast-gated single-photon avalanche diode detection

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Di Sieno, L. et al.: Characterization of a time-resolved non-contact scanning diffuse optical imaging system exploiting fast-gated single-photon avalanche diode detection. In: Review of Scientific Instruments 87 (2016), Nr. 3, 035118. DOI:

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Sum total of downloads: 112

We present a system for non-contact time-resolved diffuse reflectance imaging, based on small source-detector distance and high dynamic range measurements utilizing a fast-gated single-photon avalanche diode. The system is suitable for imaging of diffusive media without any contact with the sample and with a spatial resolution of about 1 cm at 1 cm depth. In order to objectively assess its performances, we adopted two standardized protocols developed for time-domain brain imagers. The related tests included the recording of the instrument response function of the setup and the responsivity of its detection system. Moreover, by using liquid turbid phantoms with absorbing inclusions, depth-dependent contrast and contrast-to-noise ratio as well as lateral spatial resolution were measured. To illustrate the potentialities of the novel approach, the characteristics of the non-contact system are discussed and compared to those of a fiber-based brain imager.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Forschungszentren

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pos. country downloads
total perc.
1 image of flag of Germany Germany 50 44.64%
2 image of flag of United States United States 20 17.86%
3 image of flag of Czech Republic Czech Republic 8 7.14%
4 image of flag of China China 7 6.25%
5 image of flag of No geo information available No geo information available 4 3.57%
6 image of flag of Russian Federation Russian Federation 3 2.68%
7 image of flag of Netherlands Netherlands 3 2.68%
8 image of flag of Japan Japan 2 1.79%
9 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 2 1.79%
10 image of flag of India India 2 1.79%
    other countries 11 9.82%

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