BornAgain ≻ git-develop ≻ Documentation ≻ Examples ≻ GISAS ≻ Particles, layers, and interfaces ≻ Custom morphology

Custom morphology

Result

Custom morphology result

Sample

Custom morphology sample

Python script

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

#!/usr/bin/env python3
# /// script
# requires-python = ">=3.10"
# dependencies = ["bornagain>=25,<26"]
# ///
"""
GISAS of 10 boxes with custom morphology (IsGISAXS example 7).

Ten rectangular boxes with varying widths (2, 4, 6, 8, 10 nm repeat) and
heights (1 nm), all fixed length 2 nm, placed at specific (x,y) positions
with rotation angles 0, 10, 20, ..., 90 deg. All in vacuum (no substrate).
"""
import bornagain as ba
ba.require_versions("bornagain>=25,<26")
from bornagain import deg, nm, R3


def get_sample():
    vacuum = ba.Vacuum()
    particle_color = (0.86, 0.24, 0.18)
    particle_mat = ba.RefractiveMaterial("Particle", particle_color, 6e-4, 2e-8)

    vacuum_layer = ba.Layer(vacuum)

    params = [
        # (width, pos_x, pos_y, rotation_deg)
        (2*nm,  0*nm,  0*nm,  0),
        (4*nm,  5*nm,  5*nm, 10),
        (6*nm, -5*nm, -5*nm, 20),
        (8*nm,  5*nm, -5*nm, 30),
        (10*nm,-5*nm,  5*nm, 40),
        (2*nm,  0*nm,  0*nm, 50),
        (4*nm,  5*nm,  5*nm, 60),
        (6*nm, -5*nm, -5*nm, 70),
        (8*nm,  5*nm, -5*nm, 80),
        (10*nm,-5*nm,  5*nm, 90),
    ]
    for width, px, py, rot in params:
        p = ba.Particle(particle_mat, ba.Box(2*nm, width, 1*nm))
        if rot != 0:
            p.rotate(ba.RotationZ(rot*deg))
        p.translate(R3(px, py, 0))
        vacuum_layer.deposit2D(ba.Dilute2D(0.001, p))

    vacuum_bottom = ba.Layer(vacuum)

    sample = ba.Sample()
    sample.addLayer(vacuum_layer)
    sample.addLayer(vacuum_bottom)
    return sample


def get_simulation(sample):
    beam = ba.Beam(1, 0.1*nm, 0.2*deg)
    n = 100
    detector = ba.SphericalDetector(n, -2*deg, 2*deg, n, 0, 2*deg)
    return ba.ScatteringSimulation(beam, sample, detector)


if __name__ == '__main__':
    sample = get_sample()
    ba.showSample3D(sample, sample_size=80*nm, seed=0)
    simulation = get_simulation(sample)
    result = simulation.simulate()
    ba.plot_datafield(result, unit_aspect=1)
    ba.plt.show()
auto/Examples/gisas/sample/CustomMorphology.py