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PyFAI specifications


Unique identifier OMICS_26592
Name PyFAI
Alternative name Python For Fast Azimuthal Integration
Software type Framework/Library, Package/Module
Interface Graphical user interface
Restrictions to use None
Operating system Unix/Linux, Mac OS, Windows
Programming languages Python
License GNU General Public License version 3.0
Computer skills Medium
Stability Stable
Maintained Yes




No version available



  • person_outline Jerome Kieffer

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Publications for Python For Fast Azimuthal Integration

PyFAI citations


Processing two dimensional X ray diffraction and small angle scattering data in DAWN 2

J Appl Crystallogr
PMCID: 5458597
PMID: 28656043
DOI: 10.1107/S1600576717004708

[…] (nika; ilavsky, 2012). in contrast to this are open-source developments using freely available languages, primarily python [gsas-ii (toby & von dreele, 2013), dpdak (benecke et al., 2014), pyfai (ashiotis et al., 2015) and dioptas (prescher & prakapenka, 2015)]. packages are often targeted at a particular experiment (dioptas for pxrd, dpdak for saxs) and some are based […]


Automatic processing of multimodal tomography datasets

J Synchrotron Radiat
PMCID: 5182025
PMID: 28009564
DOI: 10.1107/S1600577516017756

[…] to representative patterns (fig. 2). this is an example of a one-to-one i/o mapping, but where the data changes shape. here, we have written a plugin using the cpu implementation of the esrf package pyfai (kieffer & karkoulis, 2013). this choice demonstrates one of the central tenets of savu; that we should not reinvent the wheel for processes that already have heavily optimized solutions. […]


Online ion exchange chromatography for small angle X ray scattering

Acta Crystallogr D Struct Biol
PMCID: 5053136
PMID: 27710930
DOI: 10.1107/S2059798316012833

[…] at the sample position was of the order of 5 × 1011 photons s−1 in 700 × 700 µm. a summary of the acquisition parameters is given in table 1. all images were automatically azimuthally averaged with pyfai (ashiotis et al., 2015; kieffer & wright, 2013; kieffer & karkoulis, 2013)., online purification was performed with a high-pressure liquid-chromatography (hplc) system (shimadzu, […]


The solution configurations of inactive and activated DntR have implications for the sliding dimer mechanism of LysR transcription factors

Sci Rep
PMCID: 4730206
PMID: 26817994
DOI: 10.1038/srep19988

[…] buffer measurements taken before and after every sample measurement were averaged and used for background subtraction. individual exposures were processed automatically and independently using pyfai as implemented in the edna framework yielding radially averaged curves of normalized intensity versus scattering angle. for each exposure series additional data reduction used the automatic […]


Correlated Defect Nano Regions in a Metal–Organic Framework

Nat Commun
PMCID: 4730551
PMID: 24946837
DOI: 10.1038/ncomms5176

[…] dawn data analysis software ( (). the two-dimensional data were masked to remove contributions from dead pixels and the beamstop, and reduced to one dimensional (2θ, i) data using pyfai (). integrated intensities were then extracted for the lowest angle peaks (the {100} and {110} reflections) by subtracting a symmetric quartic background term; the corresponding raw data […]


Upgraded ESRF BM29 beamline for SAXS on macromolecules in solution

J Synchrotron Radiat
PMCID: 3943554
PMID: 23765312
DOI: 10.1107/S0909049513010431

[…] is performed online by three pipelines used subsequently and developed within the edna framework to provide the users with feedback and for quality control: (i) upstream data reduction built around pyfai (python fast azimuthal integration; kieffer & karkoulis, 2012) for data scaling and azimuthal integration, (ii) curve averaging taking into account radiation damage, background subtraction […]

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PyFAI institution(s)
European Synchrotron Radiation Facility, Grenoble, France; SESAME, Allan, Jordanie; Synchrotron Soleil, Saint-Aubin, France

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