Direct Sampling of the Egelstaff-Schofield Scattering Law and the Phonon Sampling Method for Liquids
Name
Direct Sampling of the Egelstaff-Schofield Scattering Law and the Phonon Sampling Method for Liquids.pdf
Description
Published version
Size
6.57 MB
Format
Adobe PDF
Checksum (MD5)
101347a07052cf81fe4f6c3f846fd72b
Author(s)
Ridley, Gavin
Forget, Benoit
Date Issued
December 15, 2025
Journal
Nuclear Science and Engineering
Publisher
Taylor & Francis
Citation
Ridley, G., & Forget, B. (2026). Direct Sampling of the Egelstaff-Schofield Scattering Law and the Phonon Sampling Method for Liquids. Nuclear Science and Engineering, 1–18.
Version
Final published version
Abstract
The phonon sampling method (PSM) enables accurate and efficient simulation of thermal neutron scattering from solids; it obviates a substantial degree of discretization, enabling continuous representations of scattering law behavior across a variety of conditions. Despite these strengths, the PSM relies on the phonon expansion, which only applies to solid materials. To remove this limitation, we demonstrate an efficient sampling algorithm for the nonsymmetric translational 𝒮(𝛼,𝛽) distribution of Egelstaff and Schofield, and show how this can be used to extend the PSM for the simulation of thermal neutron scattering in materials exhibiting mixed translational and vibrational behavior, such as water or molten salts. We demonstrate the correctness of the method with example results for scattering from room temperature water at a few incident neutron energies.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1080/00295639.2025.2607935
