We detail the design, construction and performance of the second generation UCL time-resolved optical tomography system, known as MONSTIR II. Intended primarily for the study of the newborn brain, the system employs 32 source fibres that sequentially transmit picosecond pulses of light at any four wavelengths between 650 and 900 nm. The 32 detector channels each contain an independent photo-multiplier tube and temporally correlated photon-counting electronics that allow the photon transit time between each source and each detector position to be measured with high temporal resolution. The system's response time, temporal stability, cross-talk, and spectral characteristics are reported. The efficacy of MONSTIR II is demonstrated by performing multi-spectral imaging of a simple phantom.
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May 2014
Research Article|
May 21 2014
MONSTIR II: A 32-channel, multispectral, time-resolved optical tomography system for neonatal brain imaging
Robert J. Cooper;
Robert J. Cooper
a)
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Elliott Magee;
Elliott Magee
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Nick Everdell;
Nick Everdell
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Salavat Magazov;
Salavat Magazov
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Marta Varela;
Marta Varela
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Dimitrios Airantzis;
Dimitrios Airantzis
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Adam P. Gibson;
Adam P. Gibson
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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Jeremy C. Hebden
Jeremy C. Hebden
Biomedical Optics Research Laboratory, Department of Medical Physics and Bioengineering,
University College London
, London WC1E 6BT, United Kingdom
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a)
Author to whom correspondence should be addressed. Electronic mail: [email protected]
Rev. Sci. Instrum. 85, 053105 (2014)
Article history
Received:
February 20 2014
Accepted:
April 27 2014
Citation
Robert J. Cooper, Elliott Magee, Nick Everdell, Salavat Magazov, Marta Varela, Dimitrios Airantzis, Adam P. Gibson, Jeremy C. Hebden; MONSTIR II: A 32-channel, multispectral, time-resolved optical tomography system for neonatal brain imaging. Rev. Sci. Instrum. 1 May 2014; 85 (5): 053105. https://doi.org/10.1063/1.4875593
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