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van der Sar, S.J. (author), Leibold, D. (author), Brunner, Stefan E. (author), Schaart, D.R. (author)We investigate fast silicon photomultiplier (SiPM)-based scintillation detectors for X-ray photon-counting applications, e.g., photon-counting computed tomography (CT). Such detectors may be an alternative to CdTe/CdZnTe (CZT) and Si detectors, which face challenges related to availability and cost-effective growth of detector-grade material,...conference paper 2022
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van der Sar, S.J. (author), Brunner, Stefan E. (author), Schaart, D.R. (author)Purpose: The implementation of photon-counting detectors is widely expected to be the next breakthrough in X-ray computed tomography (CT) instrumentation. A small number of prototype scanners equipped with direct-conversion detectors based on room-temperature semiconductors, such as CdTe and CdZnTe (CZT), are currently installed at medical...journal article 2021
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Brunner, S. (author), Schaart, D.R. (author)Due to detector developments in the last decade, the time-of-flight (TOF) method is now commonly used to improve the quality of positron emission tomography (PET) images. Clinical TOF-PET systems based on L(Y)SO:Ce crystals and silicon photomultipliers (SiPMs) with coincidence resolving times (CRT) between 325 ps and 400 ps FWHM have recently...journal article 2017
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Van Dam, H.T. (author)Positron emission tomography (PET) is one of the key medical imaging modalities in the diagnosis and staging of e.g. cancer and cardiovascular diseases. The image formation is based on the measurement of annihilation photon pairs in the detector ring of the PET scanner. The diagnostic value of a PET image depends crucially on the image quality,...doctoral thesis 2012
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Van Dam, H.T. (author), Seifert, S. (author), Vinke, R. (author), Dendooven, P. (author), Löhner, H. (author), Beekman, F.J. (author), Schaart, D.R. (author)The response of a silicon photomultiplier (SiPM) to optical signals is inherently nonproportional due to saturation, afterpulsing, and crosstalk. Existing models of the SiPM response do not account for all of these effects, and therefore, these models are not sufficiently accurate for many applications. In this work, a comprehensive model of the...journal article 2010