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The crystallographic problem: A Windows-95-based program (PowderX) has been written for powder X-ray data processing and analysis. It can be used for plotting X-ray patterns, data smoothing, background subtraction, 2 elimination, peak search, indexing and zero-angle error correction. PowderX can also be used for data format conversions to prepare the input data for Rietveld re®nement and structure determination programs such as DBWS, FULLPROF, GSAS, SIMPRO and EXPO.
Cheng Dong (Sun,) studied this question.