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Title: Sandia Computational Engine for Particle Transport for Radiation Effects.

Version 00 The SCEPTRE code solves the linear Boltzmann transport equation for one-, two- and three-dimensional geometries. SCEPTRE is capable of handling any particle type for which multigroup-Legendre cross sections are available. However, the code is designed primarily to model the transport of photons, electrons, and positrons through matter. For efficiency and flexibility, SCEPTRE contains capability for both the first- and second-order forms of the Boltzmann transport equation.
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Report Number(s):
SCEPTRE 1.4; 004595WKSTN00
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Owner Installation: Sandia National Laboratories Contributors: Sandia National Laboratories, Albuquerque, New Mexico. The SCEPTRE code uses an unstructured-mesh finite-elements spatial approximation, and a multigroup-Legendre, discrete-ordinates energy/angular approximation. Parallel solution is available for a spatially-decomposed mesh using MPI. For second-order transport methods, a spherical harmonics angular treatment is also available. For the first-order form of the transport equation, the within-group solves are performed with parallel sweeps and source iteration. For the second-order forms, an SPD linear system is formed and the space/angle dependence is solved simultaneously with a Trilinos parallel preconditioned CG solver. A different solution method can be specified for each energy group. KEYWORDS: Deterministic Radiation Transport, Finite Elements, Discrete Ordinates, Spherical Harmonics, Multi-group, Radiation Effects
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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Contributing Orgs:
Not Specified
Country of Publication:
United States

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