Backscattering Study of Electrons from 0.1 to 3.4 MeV

M. Kanafani; X. Fléchard; O. Naviliat-Cuncic; R. Garreau; T. E. Haugen; L. Hayen; S. Leblond; E. Liénard; X. Mougeot; G. Quéméner; A. Rani; J-C. Thomas; S. Vanlangendonck

arXiv · 2505.18406

Backscattering Study of Electrons from 0.1 to 3.4 MeV

M. Kanafani·X. Fléchard·O. Naviliat-Cuncic·R. Garreau·T. E. Haugen·L. Hayen·S. Leblond·E. Liénard·X. Mougeot·G. Quéméner·A. Rani·J-C. Thomas·S. Vanlangendonck

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Abstract

Benchmarking simulation codes for electron transport and scattering in matter is a crucial step for estimating uncertainties in many applications. However, experimental data for electron energies of a few MeV is scarce to make such comparisons. We report here the measurement and the quantitative analysis of backscattering probabilities of electrons in the energy range 0.1 to 3.4~MeV impinging on YAP:Ce scintillator. The setup consists of a $2\times 2\pi$ calorimeter which enables, in particular, the inclusion of large incidence angles. The results are used to benchmark various scattering models incorporated in Geant4, showing relative deviations smaller than 5% between experiment and simulations. They demonstrate the current rather high reliability of the simulations when employing appropriate electromagnetic Physics Lists.

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M. Kanafani, X. Fléchard, O. Naviliat-Cuncic, R. Garreau, T. E. Haugen, L. Hayen, S. Leblond, E. Liénard, X. Mougeot, G. Quéméner, A. Rani, J-C. Thomas, S. Vanlangendonck. 2025-05-23. Backscattering Study of Electrons from 0.1 to 3.4 MeV. https://arxiv.org/abs/2505.18406

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