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The Rayleigh Scattering is not correct. #412

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tomelse wants to merge 2 commits into from
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The Rayleigh Scattering is not correct. #412

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d3fdfa5
Correct the formula for Rayleigh scattering
tomelse Jan 20, 2025
8c4d959
Merge branch 'develop' into main
jgroehl Nov 18, 2025
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2 changes: 1 addition & 1 deletion simpa/utils/libraries/spectrum_library.py
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Expand Up @@ -247,7 +247,7 @@ def scattering_from_rayleigh_and_mie_theory(name: str, mus_at_500_nm: float = 1.
:return: A Spectrum instance based on Rayleigh and Mie scattering theory.
"""
wavelengths = np.arange(450, 1001, 1)
scattering = (mus_at_500_nm * (fraction_rayleigh_scattering * (wavelengths / 500) ** 1e-4 +
scattering = (mus_at_500_nm * (fraction_rayleigh_scattering * (wavelengths / 500) ** (-4) +
(1 - fraction_rayleigh_scattering) * (wavelengths / 500) ** -mie_power_law_coefficient))
return Spectrum(name, wavelengths, scattering)

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