sin2c

diffsims.utils.shape_factor_models.sin2c(excitation_error, max_excitation_error, minima_number=5)

Intensity with sin^2(s)/s^2 profile, after Howie-Whelan rel-rod

Parameters:

• excitation_error (array-like or float) – The distance (reciprocal) from a reflection to the Ewald sphere

• max_excitation_error (float) – The distance at which a reflection becomes extinct

• minima_number (int) – The minima_number’th minima lies at max_excitation_error from 0

Returns:

intensity

Return type:

array-like or float