make_fzp_probe

Contents

make_fzp_probe#

ptyrad.utils.physics.make_fzp_probe(probe_params, verbose=True)[source]#

Generates a Fresnel zone plate probe with internal Fresnel propagation for x-ray ptychography simulations.

Parameters:

  • N (int) – Number of pixels.

  • lambda (float) – Wavelength.

  • dx (float) – Pixel size (in meters) in the sample plane.

  • Ls (float) – Distance (in meters) from the focal plane to the sample.

  • Rn (float) – Radius of outermost zone (in meters).

  • dRn (float) – Width of outermost zone (in meters).

  • D_FZP (float) – Diameter of pinhole.

  • D_H (float) – Diameter of the central beamstop (in meters).

Returns:

Calculated probe field in the sample plane.

Return type:

ndarray

Contents