Photon counting detector pile-up correction
WebJan 21, 2024 · In this study, four well-established pile-up correction methods are numerically compared: single event reconstruction, template matching, maximum … WebKeywords: Photon counting detectors (PCDs), PCD data correction, pulse pile-up, charge sharing, deep learn-ing. 1. INTRODUCTION Photon-counting detectors (PCDs) have been popular in astronomy,1 ,2 communication,3 4 material science,5 medical imaging,6 ,7 optical imaging,8 9 and other areas. In the medical imaging eld, X-ray PCDs are drawing
Photon counting detector pile-up correction
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WebNov 1, 2014 · Many researchers were attracted to study pulse pile-up correction [10–12]. The research ideas were divided into two main types: one was based on Monte Carlo and mathematical simulation methods to correct pulse stacking, such as the use of Monte Carlo simulation, detector response function, Ramo principle, analytic Fourier approach, and … WebIn photon counting detectors (PCDs), electric pulses induced by two or more x-ray photons can pileup when their temporal separation is less than the detector deadtime. Pulse …
WebJun 15, 2024 · Pile-up correction in characterizing single-photon avalanche diodes of high dark count rate. ... The most sensitive type of NIR single-photon detector is a single-photon avalanche photodiode (SPAD) based on Ge or InGaAs. ... Photon counting in time intervals up to hundreds of nanoseconds is usually carried out in time-correlated single photon ... WebNot worth mentioning, this high detection rate would saturate or damage any known single photon detector. Interestingly, it is often assumed that the photon rate must be < 0.1% of the excitation pulse rate in order to avoid any ‘pile-up’ effects. But this assumption is not correct.
WebTo tackle this problem, we present an efficient digital pile-up correction technique based on pulse-tail prediction for high count rates. Experimental results for an NaI (Tl) detector show that when the input count rate achieved 1028.3 kcps, our method improves the energy resolution at 662 keV from 27.3% to 15.2%. WebNov 15, 2011 · The PILATUS detector system is widely used for X-ray experiments at third-generation synchrotrons. It is based on a hybrid technology combining a pixelated silicon sensor with a CMOS readout chip. Its single-photon-counting capability ensures precise and noise-free measurements. The counting mechanism introduces a short dead-time after …
WebMar 30, 2024 · After correction, the C is mostly recovered to single-photon statistic levels, and the CNR improves as the CR grows up to 71.1 Mcps, after which the pile-up …
WebMar 14, 2024 · Modern photon counting pixel detectors enabled a revolution in applications at synchrotron light sources and beyond in the last decade. One of the limitations of … ina butheWebApr 29, 2024 · We first introduce the trigger threshold concept to regularize the correction process. Then, we design a fully-connected cascade artificial neural network and train it … incense holder with marijuana leavesWebMar 9, 2024 · Photon counting detectors are expected to be the next big step in the development of medical computed tomography. Accurate modeling of the behavior of photon counting detectors in the high count rate regime is therefore important for detector performance evaluations and the development of accurate image reconstruction … incense holder tabletop fountainsWebMay 29, 2024 · After pile-up correction, the range of the pulse height distribution with the plastic scintillation detector, which has a low atomic number, was decreased (0 to 140 keV). In contrast, the range of the pulse height distribution with the NaI scintillation detector was closer to the photon spectrum (0 to 240 keV). ina cam followerWebSep 1, 2024 · Modern photon-counting pixel detectors have enabled a revolution in applications at synchrotron light sources and beyond in the last decade. One of the … incense houseWebThe first analytical dead-time models have been developed that offer a realistic description of dead-time effects on the photon-counting rates of modern pixel detectors with … ina butterflied leg of lambWebA method and apparatus for determining a parameter vector that includes a plurality of parameters of a detector pileup model of a photon-counting detector, the detector pileup … ina burger recipe