Fast model of electron transport for radiographic spectrum simulation
Abstract
Correctly modeling the continuous photon spectrum of Xray tubes requires detailed knowledge of the probability distribution of electron properties at the time of Xray photon creation, in particular electron energy, depth within the target, and direction of movement. Semianalytical Xray spectrum models frequently assume a very simplified or even uniform distribution of electron direction. In the case of thick targets and small deviations from normal incidence this is a useful approximation. For thin targets or large deviations from normal incidence the correct distribution of electron directions becomes more important. As calculation speed is an important aspect of semianalytical models compared to Monte Carlo simulations, fast evaluation of the distribution of electron properties is highly desirable. The approach presented here numerically evaluates the evolution of a discrete probability distribution of electron properties due to single electron scatter interactions within a plane target. This allows capturing the important aspects of the electron distribution while achieving runtimes of a few seconds up to a minute on a standard office PC.
 Authors:
 BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12205 Berlin (Germany)
 Publication Date:
 OSTI Identifier:
 22391257
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: AIP Conference Proceedings; Journal Volume: 1650; Journal Issue: 1; Conference: 41. Annual Review of Progress in Quantitative Nondestructive Evaluation, Boise, ID (United States), 2025 Jul 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; APPROXIMATIONS; CAPTURE; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; ELECTRONS; MATHEMATICAL MODELS; MONTE CARLO METHOD; PHOTONS; SCATTERING; X RADIATION; XRAY SPECTRA; XRAY TUBES
Citation Formats
Deresch, A., Email: Andreas.Deresch@bam.de, Bellon, C., Email: Andreas.Deresch@bam.de, Jaenisch, G.R., Email: Andreas.Deresch@bam.de, and Ewert, U., Email: Andreas.Deresch@bam.de. Fast model of electron transport for radiographic spectrum simulation. United States: N. p., 2015.
Web. doi:10.1063/1.4914656.
Deresch, A., Email: Andreas.Deresch@bam.de, Bellon, C., Email: Andreas.Deresch@bam.de, Jaenisch, G.R., Email: Andreas.Deresch@bam.de, & Ewert, U., Email: Andreas.Deresch@bam.de. Fast model of electron transport for radiographic spectrum simulation. United States. doi:10.1063/1.4914656.
Deresch, A., Email: Andreas.Deresch@bam.de, Bellon, C., Email: Andreas.Deresch@bam.de, Jaenisch, G.R., Email: Andreas.Deresch@bam.de, and Ewert, U., Email: Andreas.Deresch@bam.de. 2015.
"Fast model of electron transport for radiographic spectrum simulation". United States.
doi:10.1063/1.4914656.
@article{osti_22391257,
title = {Fast model of electron transport for radiographic spectrum simulation},
author = {Deresch, A., Email: Andreas.Deresch@bam.de and Bellon, C., Email: Andreas.Deresch@bam.de and Jaenisch, G.R., Email: Andreas.Deresch@bam.de and Ewert, U., Email: Andreas.Deresch@bam.de},
abstractNote = {Correctly modeling the continuous photon spectrum of Xray tubes requires detailed knowledge of the probability distribution of electron properties at the time of Xray photon creation, in particular electron energy, depth within the target, and direction of movement. Semianalytical Xray spectrum models frequently assume a very simplified or even uniform distribution of electron direction. In the case of thick targets and small deviations from normal incidence this is a useful approximation. For thin targets or large deviations from normal incidence the correct distribution of electron directions becomes more important. As calculation speed is an important aspect of semianalytical models compared to Monte Carlo simulations, fast evaluation of the distribution of electron properties is highly desirable. The approach presented here numerically evaluates the evolution of a discrete probability distribution of electron properties due to single electron scatter interactions within a plane target. This allows capturing the important aspects of the electron distribution while achieving runtimes of a few seconds up to a minute on a standard office PC.},
doi = {10.1063/1.4914656},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1650,
place = {United States},
year = 2015,
month = 3
}

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