data_wmp.rst

Windowed Multipole Library Format

/

Attributes

• filetype (char[]) -- String indicating the type of file
• version (int[2]) -- Major and minor version of the data

/<nuclide name>/

Datasets

• broaden_poly (int[])

  If 1, Doppler broaden curve fit for window with corresponding index. If 0, do not.

• curvefit (double[][][])

  Curve fit coefficients. Indexed by (reaction type, coefficient index, window index).

• data (complex[][])

  Complex poles and residues. Each pole has a corresponding set of residues. For example, the i-th pole and corresponding residues are stored as

  
  data[:,i] = [pole, residue₁, residue₂, …]
  

  The residues are in the order: scattering, absorption, fission. Complex numbers are stored by forming a type with "r" and "i" identifiers, similar to how h5py does it.

• E_max (double)

  Highest energy the windowed multipole part of the library is valid for.

• E_min (double)

  Lowest energy the windowed multipole part of the library is valid for.

• spacing (double)

  
  $$\frac{\sqrt{E_{max}} - \sqrt{E_{min}}}{n_w}$$
  

  Where E_max is the maximum energy the windows go up to. E_min is the minimum energy, and n_w is the number of windows, given by windows.

• sqrtAWR (double)

  Square root of the atomic weight ratio.

• windows (int[][])

  The poles to start from and end at for each window. windows[i, 0] and windows[i, 1] are, respectively, the indexes (1-based) of the first and last pole in window i.