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Investigation on X-ray Photocurrent Response of CdZnTe Photon Counting Detectors [PDF]
Sensors, 2020 Counting rate is an important factor for CdZnTe photon counting detectors as high-flux devices. Until recently, there has been a lack of knowledge on the relationship between X-ray photocurrent response and the photon counting performance of CdZnTe ...
Yingrui Li +5 more
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Photon Counting: Detectors and Applications. [PDF]
J Med Imaging (Bellingham)The editorial introduces the special issue on photon counting detectors and applications.
La Riviere PJ, Das M.
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Self-powered perovskite photon-counting detectors. [PDF]
Nature, 2023 Metal-halide perovskites (MHPs) have been successfully exploited for converting photons to charges or vice versa in applications of solar cells, light-emitting diodes and solar fuels1–3, for which all these applications involve strong light. Here we show that self-powered polycrystalline perovskite photodetectors can rival the commercial silicon ...
Zhou Y +5 more
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Single-Photon Counting Detectors
IEEE Photonics Journal, 2011 Various new developments for array detectors based on Silicon Single-Photon Avalanche Diodes (SPADs) were reported. Improved Si-SPAD technologies brought higher detection efficiency in the red wavelength range. Higher performance was attained with InGaAs/
Sergio D. Cova, Massimo Ghioni
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Effect of Deep-Level Defects on the Performance of CdZnTe Photon Counting Detectors [PDF]
Sensors, 2020 The effect of deep-level defects is a key issue for the applications of CdZnTe high-flux photon counting devices of X-ray irradiations. However, the major trap energy levels and their quantitive relationship with the device’s performance are not yet ...
Yingrui Li +7 more
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Analogous Lubberts effect in photon counting detectors. [PDF]
Proc SPIE Int Soc Opt Eng, 2020 For a light burst generated by an x ray-scintillator interaction, the quasi-isotropic spreading of optical quanta determines that both the light collection efficiency and the spread function of the light burst depend on the depth (z) of interaction: the closer the initial position of light burst to the light sensor, the less light loss and spatial ...
Li K.
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Quantifying bunch-mode influence on photon-counting detectors at SPring-8 [PDF]
Journal of Synchrotron RadiationCount-loss characteristics of photon-counting 2D detectors are demonstrated for eight bunch-modes at SPring-8 through Monte Carlo simulations. As an indicator, the effective maximum count rate was introduced to signify the X-ray intensity that the ...
Yasuhiko Imai, Takaki Hatsui
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Single-photon counting detectors for diffraction-limited light sources
Frontiers in PhysicsWhen first introduced, single-photon counting detectors reshaped crystallography at synchrotrons. Their fast readout speed enabled, for example, shutter-less data collection and fine slicing of the rotation angle and boosted the development of new ...
Erik Fröjdh +2 more
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Cascaded systems analysis of photon counting detectors. [PDF]
Med Phys, 2014 Purpose:Photon counting detectors (PCDs) are an emerging technology with applications in spectral and low‐dose radiographic and tomographic imaging. This paper develops an analytical model of PCD imaging performance, including the system gain, modulation transfer function (MTF), noise‐power spectrum (NPS), and detective quantum efficiency (DQE).Methods:
Xu J +8 more
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Journal of Imaging, 2022 Photon-counting computed tomography (CT) is a technology that has attracted increasing interest in recent years since, thanks to new-generation detectors, it holds the promise to radically change the clinical use of CT imaging.
Mario Tortora +5 more
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