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Photon counting detectors
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The development of highly pixelated fast Medipix/Timepix readout enabled a large number of novel hybrid detectors, where incoming particles/photons are initially converted into a measureable charge, typically exceeding 1000 electrons. Among those possible converters are Microchannel plate (MCP) electron multipliers, which provide some unique capabilities when combined with bare Medipix/Timepix readout.
17p
vironald
15-12-2022
8
3
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Medipix and Timepix type hybrid-pixel photon counting detectors were originally developed and intended as particle trackers at the Large Hadron Collider at CERN. Nevertheless, the applicability of Medipix technology is much broader and exceeds the field of high energy physics.
13p
vironald
15-12-2022
14
2
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In this study, we compared a PCD and conventional scintillation detector with respect to the energy windows (5%, 10%, 15%, and 20%) using a 99mTc gamma source with a Geant4 Application for Tomography Emission simulation tool. The gamma camera systems used in this work are a CZT PCD and NaI(Tl) conventional scintillation detector with a 1-mm thickness. According to the results, although the IU and DU results were improved with the energy window, the SF and CNR results deteriorated with the energy window.
5p
minhxaminhyeu4
26-06-2019
22
0
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