Linear fitting of multi-threshold counting data with a pixel-array detector for spectral X-ray imaging
Year: 2014
Type: article
Abstract: Experiments and modeling are described to perform spectral fitting of multi-threshold counting measurements on a pixel-array detector. An analytical model was developed for describing the probability density function of detected voltage in X-ray photon-counting arrays, utilizing fractional photon counting to account for edge/corner effects from voltage plumes that spread across multiple pixels. Each pixel was mathematically calibrated by fitting the detected voltage distributions to the model at both 13.5 keV and 15.0 keV X-ray energies. The model and established pixel responses were then exploited to statistically recover images of X-ray intensity as a function of X-ray energy in a simulated multi-wavelength and multi-counting threshold experiment.
Source: Journal of Synchrotron Radiation
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G102163711, G1055550527, G107546177, G1313983767, G1664757510, G262962599, G2857925935, G3075337988, G3611247453, G4030212589, G409777406, G5607048534, Ultrafast Nonlinear Optical Approaches toward High-Throughput Membrane Protein Na, G6848031779, Nonlinear Optical Imaging for Guiding Protein Structure Determination, G7822115964, G8546385581, G969889393
OpenAlex ID: W1983065022