crp/OpenMC
1
0
Fork 0
mirror of https://github.com/openmc-dev/openmc.git synced 2026-07-28 06:05:58 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

Style and spacing changes

Browse source
This commit is contained in:
Paul Romano 2023-01-10 10:39:22 +07:00
parent 62af773108
commit 4eda693133
5 changed files with 45 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

27
docs/source/methods/cross_sections.rst
View file

@ -182,19 +182,22 @@ been selected. There are three methods available:
NCrystal materials
------------------
As an alternative of the standard thermal scattering treatment using :math:`S(\alpha,\beta)`
tables, OpenMC allows to create materials using NCrystal_. In addition to the regular thermal elastic,
and thermal inelastic processes, NCrystal allows the generation of models for materials that
cannot currently included in ACE files such as oriented single crystals (see the `NCrystal paper`_),
and further extend the physics `using plugins`_. Thermal scattering kernels are generated on
the fly from dynamic and structural data, or loaded from :math:`S(\alpha,\beta)` tables converted
from ENDF6 evaluations. These kernels are sampled in a direct way using a fast `rejection algorithm`_
that does not require previous processing. A `large library`_ of materials is already included in
the NCrystal distribution, and new materials can be easily defined from scratch in the `NCMAT format`_
or `combining existing files`_.
As an alternative of the standard thermal scattering treatment using
:math:`S(\alpha,\beta)` tables, OpenMC allows to create materials using
NCrystal_. In addition to the regular thermal elastic, and thermal inelastic
processes, NCrystal allows the generation of models for materials that cannot
currently included in ACE files such as oriented single crystals (see the
`NCrystal paper`_), and further extend the physics `using plugins`_. Thermal
scattering kernels are generated on the fly from dynamic and structural data, or
loaded from :math:`S(\alpha,\beta)` tables converted from ENDF6 evaluations.
These kernels are sampled in a direct way using a fast `rejection algorithm`_
that does not require previous processing. A `large library`_ of materials is
already included in the NCrystal distribution, and new materials can be easily
defined from scratch in the `NCMAT format`_ or `combining existing files`_.
The compositions of the materials defined in NCrystal are passed on to OpenMC all other reactions
except for thermal neutron scattering are handled by continuous energy ACE libraries.
The compositions of the materials defined in NCrystal are passed on to OpenMC
all other reactions except for thermal neutron scattering are handled by
continuous energy ACE libraries.
----------------
Multi-Group Data