exCaking for Polycrystal Diffraction Strain Analysis

Dependencies

• MATLAB R2022a

Installation

Download 'calibration.p', 'reference.p' and 'analyse.p' to your project folder.

/myProjectFolder$

exCaking Command Line

calibration(peak_range, set_brightness, sub_pixel, file_format)

• peak_range - Pixelwise ring peak fitting range of calibration file
• set_brightness - Brightness of calibration file ranging from 0.0 to 1.0
• sub_pixel - Step size for sub-pixel level analysis of calibration file
• file_format - File format of calibration file

reference(peak_range, set_brightness, sub_pixel, file_format)

• peak_range - Pixelwise ring peak fitting range of polycrystal diffraction data
• set_brightness - Brightness of reference file ranging from 0.0 to 1.0
• sub_pixel - Step size for sub-pixel level analysis of polycrystal diffraction data
• file_format - File format of polycrystal diffraction data

analyse(n_of_workers, ang_step_size)

• n_of_workers - Number of parallel processes
• ang_step_size - Angular step size within the range of 360 degrees

exCaking Input Files

Follow the instructions from command window.

Usage

The guide for analysing polycrystal diffraction data:

https://github.com/fatihxuzun/exCaking/blob/main/tutorial.pdf

Outputs

/myProjectFolder/dStore$

• circle_calibration.mat

• circle_calibration_selected_points.png

• circle_calibration_fit_line.png

• circle_calibration_fit_peaks_start.png

• circle_calibration_fit_peaks_end.png

• multipeak_reference.mat

• multipeak_reference.png

• multipeak_reference_peaks_start.png

• multipeak_reference_peaks_end.png

• myDataFolder_exCaking.csv

Scientific Usage

The exCaking console application was developed to improve strain analysis in polycrystalline materials by offering a more accurate approach to processing diffraction data from Debye-Scherrer rings, enhancing the precision of elastic strain measurements. Please cite:

Uzun, F.; Daisenberger, D.; Liogas, K.; Wang, Z.I.; Chen, J.; Besnard, C.; Korsunsky, A.M. Extended Caking Method for Strain Analysis of Polycrystalline Diffraction Debye–Scherrer Rings. Crystals (2024). https://doi.org/10.3390/cryst14080716