Geant4 simulation of the moderating neutrons spectrum

V. P. Smolyar; V. A. Tarasov; A. O. Mileva; A. V. Tykhonov; V. D. Rusov

doi:10.1016/j.radphyschem.2023.111151

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arXiv · 2012.11402

Geant4 simulation of the moderating neutrons spectrum

V. P. Smolyar·V. A. Tarasov·A. O. Mileva·A. V. Tykhonov·V. D. Rusov

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Abstract

In this paper we deal with the problem of predicting a steady-state neutron spectrum in media of arbitrary composition and geometry. The analytical calculations of such spectrum are often too complex, if at all possible. We describe a method of Geant4-based Monte Carlo calculation of the steady-state neutron spectrum in a medium containing a fixed neutron source. In addition to the steady-state spectrum, we obtain the snapshots of the neutron spectrum evolution in time, which may be thought of as the non-equilibrium neutron spectra, and their form is of considerable interest for further studies.

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V. P. Smolyar, V. A. Tarasov, A. O. Mileva, A. V. Tykhonov, V. D. Rusov. 2020-12-21. Geant4 simulation of the moderating neutrons spectrum. https://doi.org/10.1016/j.radphyschem.2023.111151

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