@inproceedings{d5ccb81d7aab4e19a75f537d9124991c,
title = "Ray-effect mitigation for the discrete ordinates method using artificial scattering",
abstract = "When solving the radiation transport equation with the discrete ordinates (SN) method one observes ray-effects which result from a break in rotational symmetry from the finite set of directions chosen by SN . We present a modified version of the SN method, which we call as-SN , that contains an additional artificial forward-peaked scattering operator. This operator scatters particles between the ordinates so that ray-effects are reduced. Similar to artificial viscosity for space discretizations, the additional term vanishes as the number of ordinates grows. We present an implicit-in-time implementation that uses standard SN solver technology. First numerical experiments are shown.",
keywords = "Discrete ordinates method, Quadrature, Radiation transport, Ray effects",
author = "Thomas Camminady and Martin Frank and Hauck, {Cory D.} and Jonas Kusch",
note = "Publisher Copyright: {\textcopyright} 2019 American Nuclear Society. All rights reserved.; 2019 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 ; Conference date: 25-08-2019 Through 29-08-2019",
year = "2019",
language = "English",
series = "International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019",
publisher = "American Nuclear Society",
pages = "459--466",
booktitle = "International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019",
}