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Resolution of @paulromano comments

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Adam Nelson 2016-10-10 15:19:47 -04:00
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52
docs/source/io_formats/mgxs_library.rst
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@ -38,8 +38,8 @@ MGXS Library Specification
The data within <library name> contains the temperature-dependent multi-group
data for the nuclide or material that it represents.
:Attributes: - **awr** (*double*) -- The atomic weight ratio (optional, i.e. it
is not meaningful for material-wise data)
:Attributes: - **atomic_weight_ratio** (*double*) -- The atomic weight ratio (optional,
i.e. it is not meaningful for material-wise data)
- **fissionable** (*int*) -- Whether the dataset is fissionable
(1) or not (0).
- **representation** (*char[]*) -- The method used to generate and
@ -49,26 +49,27 @@ data for the nuclide or material that it represents.
data was generated with angular dependent fluxes and thus the
data is angle-dependent. Valid values are either "isotropic" or
"angle".
- **num-azimuthal** (*int*) -- Number of equal width angular bins
- **num_azimuthal** (*int*) -- Number of equal width angular bins
that the azimuthal angular domain is subdivided if the
`representation` attribute is "angle". This parameter is
ignored otherwise.
- **num-polar** (*int*) -- Number of equal width angular bins
- **num_polar** (*int*) -- Number of equal width angular bins
that the polar angular domain is subdivided if the
`representation` attribute is "angle". This parameter is
ignored otherwise.
- **scatter-format** (*char[]*) -- The representation of the
- **scatter_format** (*char[]*) -- The representation of the
scattering angular distribution. The options are either
"legendre", "histogram", or "tabular". If not provided, the
default of "legendre" will be assumed.
- **order** (*int*) -- Either the Legendre order, number of bins,
or number of points (depending on the value of `scatter-format`)
or number of points (depending on the value of `scatter_format`)
used to describe the angular distribution associated with each
group-to-group transfer probability.
**/<library name>/kTs/**
:Datasets: - **<TTT>K** (*double*) -- kT values (in MeV) for each Temperature
:Datasets:
- **<TTT>K** (*double*) -- kT values (in MeV) for each Temperature
TTT (in Kelvin), rounded to the nearest integer
**/<library name>/<TTT>K/**
@ -109,44 +110,44 @@ Temperature-dependent data, provided for temperature <TTT>K.
the `nu-fission` data must represent the fission neutron energy
spectra as well and thus will have one additional dimension
for the outgoing energy group. In this case, `nu-fission` has the
same dimensionality as `multiplicity matrix`.
- **inverse velocities** (*double[]*) -- Average inverse velocity
same dimensionality as `multiplicity_matrix`.
- **inverse_velocities** (*double[]*) -- Average inverse velocity
for each of the groups in the library. This dataset is optional.
**/<library name>/<TTT>K/scatter data/**
**/<library name>/<TTT>K/scatter_data/**
Data specific to neutron scattering for the temperature <TTT>K
:Datasets: - **g_min** (*int[]* or *int[][][]) --
:Datasets: - **g_min** (*int[]* or *int[][][]*) --
Minimum (most energetic) outgoing groups with non-zero values of
the scattering matrix. These group numbers use the standard
ordering where the fastest neutron energy group is group 1 while
the slowest neutron energy group is group G.
The dimensionality of `g_out bounds` is:
`g_min[g_in]`, or `g_min[num-polar][num-azimuthal][g_in]`.
The dimensionality of `g_min` is:
`g_min[g_in]`, or `g_min[num_polar][num_azimuthal][g_in]`.
The former is used when `representation` is "isotropic", and the
latter when `representation` is "angle".
- **g_max** (*int[]* or *int[][][]) --
- **g_max** (*int[]* or *int[][][]*) --
Maximum (least energetic) outgoing groups with non-zero values of
the scattering matrix. These group numbers use the standard
ordering where the fastest neutron energy group is group 1 while
the slowest neutron energy group is group G.
The dimensionality of `g_out bounds` is:
`g_max[g_in]`, or `g_max[num-polar][num-azimuthal][g_in]`.
The dimensionality of `g_max` is:
`g_max[g_in]`, or `g_max[num_polar][num_azimuthal][g_in]`.
The former is used when `representation` is "isotropic", and the
latter when `representation` is "angle".
- **scatter matrix** (*double[]*) -- Flattened representation of the
- **scatter_matrix** (*double[]*) -- Flattened representation of the
scattering moment matrices. The pre-flattened array is shaped as
follows (in row-major format):
`scatter matrix[order(+1)][g_in][g_out]`, or
`scatter matrix[num-polar][num-azimuthal][order(+1)][g_in][g_out]`
`scatter_matrix[order(+1)][g_in][g_out]`, or
`scatter_matrix[num_polar][num_azimuthal][order(+1)][g_in][g_out]`
The former is used when `representation` is "isotropic", and the
latter when `representation` is "angle". Note that if the value of
`scatter-format` is "legendre", the order dimension will be one
`scatter_format` is "legendre", the order dimension will be one
larger than the value of `order`, otherwise it will match `order`.
Finally, the g_out dimension has a dimensionality of
`g_out bounds`[0] to `g_out bounds`[1].
- **multiplicity matrix** (*double[]*) -- Flattened representation of
`g_min` to `g_max`.
- **multiplicity_matrix** (*double[]*) -- Flattened representation of
the scattering moment matrices. This dataset provides the code with
a scaling factor to account for neutrons being produced in (n,xn)
reactions. This is assumed isotropic and therefore is not repeated
@ -154,9 +155,8 @@ Data specific to neutron scattering for the temperature <TTT>K
optional, if it is not provided no multiplication (i.e., values of
1.0) will be assumed.
The pre-flattened array is shaped as follows (in row-major format):
`multiplicity matrix[g_in][g_out]`, or
`multiplicity matrix[num-polar][num-azimuthal][g_in][g_out]`
`multiplicity_matrix[g_in][g_out]`, or
`multiplicity_matrix[num_polar][num_azimuthal][g_in][g_out]`
The former is used when `representation` is "isotropic", and the
latter when `representation` is "angle". Finally, the g_out
dimension has a dimensionality of `g_out bounds`[0] to
`g_out bounds`[1].
dimension has a dimensionality of `g_min` to `g_max`.