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PeakPo conducts rapid analysis of a large powder X-ray diffraction dataset. It is designed particularly for synchrotron diffraction data measured in the diamond-anvil cell.

The key functions include:

• Quick navigation through a large dataset
• Comparison of diffraction images and patterns
• Overlay of expected peak positions for candidate phases at given pressures and temperatures
• Visual adjustment of unit-cell parameters to match diffraction peak positions
• Peak fitting
• Unit-cell parameter fitting
• Preparation of publication-ready plots

The analysis results can be saved in a *.dpp file. A *.dpp file can be used as a template for analyzing a large set of data with common features.

A range of output files are also generated in [your chi data file name]-param folder, which allows for plotting unrolled images and processed diffraction patterns together with unit-cell fit results in other softwares and python coding in Jupyter.

PeakPo itself can save high-quality publication-ready plots in a pdf format which can be read from vector graphics softwares such as illustrator for further modifications.

About this Wiki

• This wiki is to provide introduction on basic functions available in PeakPo, together with installation and execution of the software.

Comments, recommendations, and bug report

• Please feel free to email me comments, recommendations, and bug report.
• When you report bugs or errors to me, please send me the error messages as well.
• Feel free to email me, if you want to see wiki on particular subjects on PeakPo.