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A small fix to the high NA propagator #67

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Merged
yoshikisd merged 1 commit into from
Feb 11, 2026
Merged

A small fix to the high NA propagator #67

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9 changes: 8 additions & 1 deletion src/cdtools/tools/propagators/propagators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -192,13 +192,20 @@ def generate_high_NA_k_intensity_map(sample_basis, det_basis,det_shape,distance,

k0 = 2*np.pi/wavelength

Ks = k0 * Rs / np.linalg.norm(Rs, axis=0)
R_magnitudes = np.linalg.norm(Rs, axis=0)
Ks = k0 * Rs / R_magnitudes

# My attempt at seeing what happens if I flip the Ks
#Ks *= -1


# This is the cosine of the angle with the detector normal
intensity_map = np.tensordot(samp_det_vec/(k0*distance),Ks,axes=1)

# And we add the factor of 1/R^2 which accounts for the increasing
# distance from the source
intensity_map = np.min(R_magnitudes)**2 * (intensity_map / R_magnitudes**2)

if lens:
# Set the intensity map to be uniform if a lens is being used
intensity_map = np.ones_like(intensity_map)
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