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#!/usr/bin/env python3
# /// script
# requires-python = ">=3.10"
# dependencies = ["bornagain>=25,<26"]
# ///
"""
Same sample as in Offspec1, but simulated as GISAS, i.e. without integration in phi
"""
import bornagain as ba
ba.require_versions("bornagain>=25,<26")
from bornagain import deg, nm
def get_sample():
# Materials
particle_color = (0.86, 0.24, 0.18)
particle_mat = ba.RefractiveMaterial("Particle", particle_color, 6e-5, 2e-08)
substrate_color = (0.28, 0.57, 0.82)
substrate_mat = ba.RefractiveMaterial("Substrate", substrate_color, 6e-06, 2e-08)
vacuum = ba.Vacuum()
# Particles
box_length = 1000*nm
ff = ba.Box(box_length, 20*nm, 10*nm)
particle = ba.Particle(particle_mat, ff)
particle_rotation = ba.RotationZ(90*deg)
particle.rotate(particle_rotation)
# Interference functions
layout = ba.Crystal1D(particle, 100*nm, 0, 1/box_length)
profile = ba.Profile1DCauchy(1e6*nm)
layout.setDecayFunction(profile)
# Layers
layer_1 = ba.Layer(vacuum)
layer_1.deposit2D(layout)
layer_2 = ba.Layer(substrate_mat)
# Sample
sample = ba.Sample()
sample.addLayer(layer_1)
sample.addLayer(layer_2)
return sample
def simulate(sample):
beam = ba.Beam(1e9, 0.1 * nm, 1.0 * deg)
detector = ba.SphericalDetector(501, -2*deg, 2*deg, 1, 0.94*deg, 1.06*deg)
sim = ba.ScatteringSimulation(beam, sample, detector)
return sim.simulate().flat()
if __name__ == '__main__':
sample = get_sample()
result = simulate(sample)
sum = result.intensities().sum()
print(f'sum = {sum/1e9}')
ba.showSample3D(sample, sample_size=1000*nm, seed=0)
ba.plot_datafield(result)
ba.plt.show()
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