mirror of
https://github.com/pim-n/pg-rad
synced 2026-03-22 21:48:11 +01:00
54 lines
1.2 KiB
Python
54 lines
1.2 KiB
Python
import numpy as np
|
|
import pytest
|
|
|
|
from pg_rad.inputparser.parser import ConfigParser
|
|
from pg_rad.landscape.director import LandscapeDirector
|
|
from pg_rad.physics import calculate_fluence_at
|
|
|
|
|
|
@pytest.fixture
|
|
def phi_ref(test_landscape):
|
|
source = test_landscape.point_sources[0]
|
|
|
|
r = np.linalg.norm(np.array([10, 10, 0]) - np.array(source.pos))
|
|
|
|
A = source.activity * 1E6
|
|
b = source.isotope.b
|
|
mu_air = source.isotope.mu_mass_air * test_landscape.air_density
|
|
mu_air *= 0.1
|
|
|
|
return A * b * np.exp(-mu_air * r) / (4 * np.pi * r**2)
|
|
|
|
|
|
@pytest.fixture
|
|
def test_landscape():
|
|
|
|
test_yaml = """
|
|
name: Test landscape
|
|
speed: 8.33
|
|
acquisition_time: 1
|
|
|
|
path:
|
|
length: 1000
|
|
segments:
|
|
- straight
|
|
|
|
sources:
|
|
test_source:
|
|
activity_MBq: 100
|
|
position: [0, 0, 0]
|
|
isotope: CS137
|
|
"""
|
|
|
|
cp = ConfigParser(test_yaml).parse()
|
|
landscape = LandscapeDirector.build_from_config(cp)
|
|
return landscape
|
|
|
|
|
|
def test_single_source_fluence(phi_ref, test_landscape):
|
|
phi = calculate_fluence_at(
|
|
test_landscape,
|
|
np.array([10, 10, 0]),
|
|
)
|
|
assert pytest.approx(phi[0], rel=1E-3) == phi_ref
|