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#!/usr/bin/env python3
# /// script
# requires-python = ">=3.10"
# dependencies = ["bornagain>=25,<26"]
# ///
"""
GISAS of a stacked two-box composition embedded in a Teflon layer.
A flat box (20 × 50 × 5 nm, rotated Z) sits below a standing box
(5 × 20 × 50 nm, rotated Y). The pair is rotated 90° around Y and
placed in a 100 nm Teflon layer.
"""
import bornagain as ba
ba.require_versions("bornagain>=25,<26")
from bornagain import deg, nm, R3
layer_thickness = 100 * nm
def get_sample():
vacuum = ba.Vacuum()
particle_color = (0.86, 0.24, 0.18)
particle_mat = ba.RefractiveMaterial("Ag", particle_color, 1.245e-5, 5.419e-7)
teflon_color = (0.93, 0.72, 0.25)
teflon_mat = ba.RefractiveMaterial("Teflon", teflon_color, 2.9e-6, 6.019e-9)
substrate_color = (0.24, 0.50, 0.74)
substrate_mat = ba.RefractiveMaterial(
"Substrate2", substrate_color, 3.212e-6, 3.244e-8)
box1_length = 20 * nm
box1_width = 50 * nm
box1_height = 5 * nm
box1 = ba.Particle(particle_mat,
ba.Box(box1_length, box1_width, box1_height))
box1.rotate(ba.RotationZ(90 * deg))
box2_length = 5 * nm
box2_width = 20 * nm
box2_height = 50 * nm
box2 = ba.Particle(particle_mat,
ba.Box(box2_length, box2_width, box2_height))
box2.rotate(ba.RotationY(90 * deg))
box2.translate(R3(-box2_height / 2, 0, box2_length / 2))
composition = ba.Compound()
composition.addComponent(box1, R3())
composition.addComponent(box2, R3(0, 0, box1_height))
composition.rotate(ba.RotationY(90 * deg))
composition.translate(R3(0, 0, -layer_thickness / 2))
vacuum_layer = ba.Layer(vacuum)
middle_layer = ba.Layer(teflon_mat, layer_thickness)
substrate_layer = ba.Layer(substrate_mat)
vacuum_layer.deposit2D(ba.Dilute2D(5e-4, composition))
sample = ba.Sample()
sample.addLayer(vacuum_layer)
sample.addLayer(middle_layer)
sample.addLayer(substrate_layer)
return sample
def get_simulation(sample):
beam = ba.Beam(1e9, 0.1 * nm, 0.2 * deg)
n = 200
detector = ba.SphericalDetector(n, -2 * deg, 2 * deg, n, 0, 2 * deg)
simulation = ba.ScatteringSimulation(beam, sample, detector)
return simulation
if __name__ == '__main__':
sample = get_sample()
ba.showSample3D(sample, sample_size=120*nm, seed=0)
simulation = get_simulation(sample)
result = simulation.simulate()
ba.plot_datafield(result, unit_aspect=1)
ba.plt.show()
|
BornAgain
≻ git-develop
≻ Documentation ≻ Examples ≻ GISAS ≻ Particles, layers, and interfaces ≻ Box stack composition
