hard_aperture

Contents

hard_aperture#

abtem.transfer.hard_aperture(alpha, semiangle_cutoff)[source]#

Calculates an array with a disk of ones and a soft edge.

Parameters:
  • alpha (2D array) – Array of radial angles [mrad].

  • semiangle_cutoff (float or 1D array) – Semiangle cutoff(s) of the aperture(s). If given as an array, a 3D array is returned where the first dimension represents a different aperture for each item in the array of semiangle cutoffs.

Returns:

hard_aperture_array

Return type:

2D or 3D np.ndarray