integration for oriented samples I / degrees on a ring

Dear pyFAI users,
We would like to integrate our waxs datas for oriented samples, to get a representation integrated intensities vs degrees on a ring.
This is not what we usually do.

[cid:image001.png@01DC4277.9197FA30]
My Python code is :

ai = AzimuthalIntegrator()
ai.load(poni_file)
npt_azim = 360  # angular resolution
chi, Ichi = ai.integrate_radial(
    Datas, npt_azim,
    unit="chi_deg",
    radial_unit="q_A^-1",
    azimuth_range=(0, 360),
    method="numpy",
    polarization_factor=None,
    correctSolidAngle=True,
    mask=mask,
    radial_range=(1.0,2.0),
)

plt.plot(chi, Ichi)

[cid:image006.png@01DC4278.5AB1C220]

The result seems strange (no values after 180°).

Could you help me ?
Olivier





80 years of science and technologies

[cid:image002.png@01DC4277.9197FA30]<https://www.cea.fr/english>

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[cid:image004.jpg@01DC4277.9197FA30]

Olivier TACHÉ
Nanometric Organisation Laboratory  (L.I.O.N.S.)
UMR 3685 NIMBE      CEA - CNRS  / Paris-Saclay University
DRF / IRAMIS / NIMBE
Building 546 - Room 30 PC 175
CEA Paris-Saclay -     RD306     -   91191 Gif sur Yvette Cedex FRANCE
+33 (0)6 43 36 05 37          olivier.tache@???<mailto:olivier.tache@cea.fr>                                      [cid:image005.jpg@01DC4277.9197FA30] <https://www.linkedin.com/in/olivier-tache-CEA/>