DESCRIPTION
usage: pyFAI-calib [options] -w 1 -D detector -c calibrant.D imagefile.edfCalibrate the diffraction setup geometry based on Debye-Sherrer rings images without a priori knowledge of your setup. You will need to provide a calibrant or a "d-spacing" file containing the spacing of Miller plans in Angstrom (in decreasing order). Calibrants available: Ni, CrOx, NaCl, Si_SRM640e, Si_SRM640d, Si_SRM640a, Si_SRM640c, Si_SRM640b, Cr2O3, AgBh, Si_SRM640, CuO, PBBA, alpha_Al2O3, quartz, C14H30O, cristobaltite, Si, LaB6, CeO2, LaB6_SRM660a, LaB6_SRM660b, LaB6_SRM660c, TiO2, ZnO, Al, Au or search in the American Mineralogist database: http://rruff.geo.arizona.edu/AMS/amcsd.php The --calibrant option is mandatory !
positional arguments:
- FILE
- List of files to calibrate
optional arguments:
- -h, --help
- show this help message and exit
- -V, --version
- show program's version number and exit
- -o FILE, --out FILE
- Filename where processed image is saved
- -v, --verbose
- switch to debug/verbose mode
- -c FILE, --calibrant FILE
- Calibrant name or file containing d-spacing of the reference sample (MANDATORY, case sensitive !)
- -w WAVELENGTH, --wavelength WAVELENGTH
- wavelength of the X-Ray beam in Angstrom. Mandatory
- -e ENERGY, --energy ENERGY
- energy of the X-Ray beam in keV (hc=12.398419292keV.A).
- -P POLARIZATION_FACTOR, --polarization POLARIZATION_FACTOR
- polarization factor, from -1 (vertical) to +1 (horizontal), default is None (no correction), synchrotrons are around 0.95
- -i FILE, --poni FILE
- file containing the diffraction parameter (poni-file). MANDATORY for pyFAI-recalib!
- -b BACKGROUND, --background BACKGROUND
- Automatic background subtraction if no value are provided
- -d DARK, --dark DARK
- list of comma separated dark images to average and subtract
- -f FLAT, --flat FLAT
- list of comma separated flat images to average and divide
- -s SPLINE, --spline SPLINE
- spline file describing the detector distortion
- -D DETECTOR_NAME, --detector DETECTOR_NAME
- Detector name (instead of pixel size+spline)
- -m MASK, --mask MASK
- file containing the mask (for image reconstruction)
- -n NPT, --pt NPT
- file with datapoints saved. Default: basename.npt
- --filter FILTER
- select the filter, either mean(default), max or median
- -l DISTANCE, --distance DISTANCE
- sample-detector distance in millimeter. Default: 100mm
- --dist DIST
- sample-detector distance in meter. Default: 0.1m
- --poni1 PONI1
- poni1 coordinate in meter. Default: center of detector
- --poni2 PONI2
- poni2 coordinate in meter. Default: center of detector
- --rot1 ROT1
- rot1 in radians. default: 0
- --rot2 ROT2
- rot2 in radians. default: 0
- --rot3 ROT3
- rot3 in radians. default: 0
- --fix-dist
- fix the distance parameter
- --free-dist
- free the distance parameter. Default: Activated
- --fix-poni1
- fix the poni1 parameter
- --free-poni1
- free the poni1 parameter. Default: Activated
- --fix-poni2
- fix the poni2 parameter
- --free-poni2
- free the poni2 parameter. Default: Activated
- --fix-rot1
- fix the rot1 parameter
- --free-rot1
- free the rot1 parameter. Default: Activated
- --fix-rot2
- fix the rot2 parameter
- --free-rot2
- free the rot2 parameter. Default: Activated
- --fix-rot3
- fix the rot3 parameter
- --free-rot3
- free the rot3 parameter. Default: Activated
- --fix-wavelength
- fix the wavelength parameter. Default: Activated
- --free-wavelength
- free the wavelength parameter. Default: Deactivated
- --tilt
- Allow initially detector tilt to be refined (rot1, rot2, rot3). Default: Activated
- --no-tilt
- Deactivated tilt refinement and set all rotation to 0
- --saturation SATURATION
- consider all pixel>max*(1-saturation) as saturated and reconstruct them, default: 0 (deactivated)
- --weighted
- weight fit by intensity, by default not.
- --npt NPT_1D
- Number of point in 1D integrated pattern, Default: 1024
- --npt-azim NPT_2D_AZIM
- Number of azimuthal sectors in 2D integrated images. Default: 360
- --npt-rad NPT_2D_RAD
- Number of radial bins in 2D integrated images. Default: 400
- --unit UNIT
- Valid units for radial range: 2th_deg, 2th_rad, q_nm^-1, q_A^-1, r_mm. Default: 2th_deg
- --no-gui
- force the program to run without a Graphical interface
- --no-interactive
- force the program to run and exit without prompting for refinements
- -r, --reconstruct
- Reconstruct image where data are masked or <0 (for Pilatus detectors or detectors with modules)
- -g GAUSSIAN, --gaussian GAUSSIAN
- Size of the gaussian kernel. Size of the gap (in pixels) between two consecutive rings, by default 100 Increase the value if the arc is not complete; decrease the value if arcs are mixed together.
- --square
- Use square kernel shape for neighbor search instead of diamond shape
- -p PIXEL, --pixel PIXEL
- size of the pixel in micron
The output of this program is a "PONI" file containing the detector description and the 6 refined parameters (distance, center, rotation) and wavelength. An 1D and 2D diffraction patterns are also produced. (.dat and .azim files)