Notizen: Check of Electron Backscattering Coefficients at 10 and 20 MeV

Harder, Dietrich; Metzger, L.

doi:10.1515/zna-1968-1036

Cited by 10 publications

(1 citation statement)

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“…Their performance in the context of Geant4 10.0 and 10.1 is illustrated in Figs. 27 10 1 10 2 10 3 q q q q q q q q Mg, Z=12 , GSBRF Bronshtein1969 Heinrich1966 Hunger1979 Saldick1954 10 1 10 2 10 3 q q q q q q q qq q q q q qq q q q q q Fe, Z=26 , GSBRF q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q Au, Z=79 q q q q q q q qq q q q q qqq q q q q q q q q U, Z=92 , GSBRF Bishop1965 Drescher1970 Ebert1969 Heinrich1966 Hunger1979 Neubert1980 Philibert1963 Reimer1980 Soum1987 Tabata1967 Verdier1968 Weinryb1964 9.3p02 9.4p04 9.6p03 10.0p03 10.1 Fig. 26.…”

Section: F Geant4 Wentzelvi Modelmentioning

confidence: 99%

Validation Test of Geant4 Simulation of Electron Backscattering

Kim

Pia

Basaglia

et al. 2015

IEEE Trans. Nucl. Sci.

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Backscattering is a sensitive probe of the accuracy of electron scattering algorithms implemented in Monte Carlo codes. The capability of the Geant4 toolkit to describe realistically the fraction of electrons backscattered from a target volume is extensively and quantitatively evaluated in comparison with experimental data retrieved from the literature. The validation test covers the energy range between approximately 100 eV and 20 MeV, and concerns a wide set of target elements. Multiple and single electron scattering models implemented in Geant4, as well as preassembled selections of physics models distributed within Geant4, are analyzed with statistical methods. The evaluations concern Geant4 versions from 9.1 to 10.1. Significant evolutions are observed over the range of Geant4 versions, not always in the direction of better compatibility with experiment. Goodness-of-fit tests complemented by categorical analysis tests identify a configuration based on Geant4 Urban multiple scattering model in Geant4 version 9.1 and a configuration based on single Coulomb scattering in Geant4 10.0 as the physics options best reproducing experimental data above a few tens of keV. At lower energies only single scattering demonstrates some capability to reproduce data down to a few keV. Recommended preassembled physics configurations appear incapable of describing electron backscattering compatible with experiment. With the support of statistical methods, a correlation is established between the validation of Geant4-based simulation of backscattering and of energy deposition

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Section: F Geant4 Wentzelvi Modelmentioning

confidence: 99%