Integration tool: pyFAI-saxs

Purpose

Azimuthal integration for SAXS users.

pyFAI-saxs is the SAXS script of pyFAI that allows data reduction (azimuthal integration) for Small Angle Scattering with output axis in q space.

Usage:

pyFAI-saxs -p=param.poni -w1.54 file.edf file2.edf file3.edf

Options:

-h, –help

show this help message and exit

-v, –version

show program’s version number and exit

-p PONIFILE

PyFAI parameter file (.poni)

-n NPT, –npt NPT

Number of points in radial dimension

-w WAVELENGTH, –wavelength WAVELENGTH

wavelength of the X-Ray beam in Angstrom

-e ENERGY, –energy ENERGY

energy of the X-Ray beam in keV (hc=12.398419843320026keV.A)

-u DUMMY, –dummy DUMMY

dummy value for dead pixels

-U DELTA_DUMMY, –delta_dummy DELTA_DUMMY

delta dummy value

-m MASK, –mask MASK

name of the file containing the mask image

-d DARK, –dark DARK

name of the file containing the dark current

-f FLAT, –flat FLAT

name of the file containing the flat field

-P POLARIZATION_FACTOR, –polarization POLARIZATION_FACTOR

Polarization factor, from -1 (vertical) to +1 (horizontal), default is None for no correction, synchrotrons are around 0.95

–error-model ERROR_MODEL

Error model to use. Currently on ‘poisson’ is implemented

–unit UNIT

unit for the radial dimension: can be q_nm^-1, q_A^-1, 2th_deg, 2th_rad or r_mm

–ext EXT

extension of the regrouped filename (.dat)

–method METHOD

Integration method

pyFAI-saxs is the SAXS script of pyFAI that allows data reduction (azimuthal integration) for Small Angle Scattering with output axis in q space.