SAXS.Models.Simple

SAXS/Models/Simple.py

guinier_porod(q, G, Rg, d, return_also_q1=False)

Guinier-Porod model. Combines the Guinier and Porod regimes for small-angle scattering.

Parameters:

• q (float or array-like) – The scattering vector magnitude.

• G (float) – The Guinier prefactor.

• Rg (float) – The radius of gyration.

• d (float) – The Porod exponent.

• return_also_q1 (bool, optional) – If True, return the value of q1 as well.

Returns:

• w (float or array-like) – The calculated scattering intensity.

• q1 (float, optional) – The value of q1, returned only if return_also_q1 is True.