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[ESSREFLECTOMETRY] fix: amor gravity correction #731

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Merged
jokasimr merged 1 commit into from
Aug 28, 2026
+2 −2
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[ESSREFLECTOMETRY] fix: amor gravity correction #731

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4 changes: 2 additions & 2 deletions packages/essreflectometry/src/ess/amor/conversions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -68,12 +68,12 @@ def theta(
.. math::

\\sin(\\gamma^*) =
\\sin(\\gamma) + \\frac{g}{2} \\frac{L_2 \\lambda^2 h^2}{m_n^2}.
\\sin(\\gamma) + \\frac{g}{2} \\frac{L_2 \\lambda^2 m_n^2}{h^2}.

Finally, the scattering angle is obtained by subtracting the sample rotation
relative to the horizontal plane.
'''
c = sc.constants.g * sc.constants.m_n**2 / sc.constants.h**2
c = sc.constants.g * sc.constants.m_n**2 / sc.constants.h**2 / 2
out = (c * L2 * wavelength**2).to(unit='dimensionless') + sc.sin(
pixel_divergence_angle.to(unit='rad', copy=False)
+ detector_rotation.to(unit='rad')
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