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77 lines
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ReStructuredText
77 lines
3.1 KiB
ReStructuredText
.. _io_data_wmp:
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=================================
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Windowed Multipole Library Format
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=================================
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**/version** (*char[]*)
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The format version of the file. The current version is "v0.2"
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**/nuclide/**
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- **broaden_poly** (*int[]*)
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If 1, Doppler broaden curve fit for window with corresponding index.
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If 0, do not.
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- **curvefit** (*double[][][]*)
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Curve fit coefficients. Indexed by (reaction type, coefficient index,
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window index).
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- **data** (*complex[][]*)
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Complex poles and residues. Each pole has a corresponding set of
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residues. For example, the :math:`i`-th pole and corresponding residues
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are stored as
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.. math::
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\text{data}[:,i] = [\text{pole},~\text{residue}_1,~\text{residue}_2,
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~\ldots]
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The residues are in the order: total, competitive if present,
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absorption, fission. Complex numbers are stored by forming a type with
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":math:`r`" and ":math:`i`" identifiers, similar to how `h5py`_ does it.
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- **end_E** (*double*)
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Highest energy the windowed multipole part of the library is valid for.
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- **formalism** (*int*)
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The formalism of the underlying data. Uses the `ENDF-6`_ format
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formalism numbers.
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.. table:: Table of supported formalisms.
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+-------------+------------------+
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| Formalism | Formalism number |
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+=============+==================+
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| MLBW | 2 |
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+-------------+------------------+
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| Reich-Moore | 3 |
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+-------------+------------------+
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- **l_value** (*int[]*)
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The index for a corresponding pole. Equivalent to the :math:`l` quantum
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number of the resonance the pole comes from :math:`+1`.
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- **pseudo_K0RS** (*double[]*)
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:math:`l` dependent value of
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.. math::
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\sqrt{\frac{2 m_n}{\hbar}}\frac{AWR}{AWR + 1} r_{s,l}
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Where :math:`m_n` is mass of neutron, :math:`AWR` is the atomic weight
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ratio of the target to the neutron, and :math:`r_{s,l}` is the
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scattering radius for a given :math:`l`.
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- **spacing** (*double*)
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.. math::
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\frac{\sqrt{E_{max}}- \sqrt{E_{min}}}{n_w}
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Where :math:`E_{max}` is the maximum energy the windows go up to. This
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is not equivalent to the maximum energy for which the windowed multipole
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data is valid for. It is slightly higher to ensure an integer number of
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windows. :math:`E_{min}` is the minimum energy and equivalent to
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``start_E``, and :math:`n_w` is the number of windows, given by
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``windows``.
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- **sqrtAWR** (*double*)
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Square root of the atomic weight ratio.
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- **start_E** (*double*)
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Lowest energy the windowed multipole part of the library is valid for.
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- **w_start** (*int[]*)
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The pole to start from for each window.
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- **w_end** (*int[]*)
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The pole to end at for each window.
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.. _h5py: http://docs.h5py.org/en/latest/
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.. _ENDF-6: https://www.oecd-nea.org/dbdata/data/manual-endf/endf102.pdf
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