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RIFRAN-85 - A set of programmable calculator programs for powder diffraction phase identification

T. Havík, M. Škrobian, and M. Havlík

Department of Nonferrous Metallurgy, Metallurgical Faculty of the Technical University, CS-04385 Košice

 

Abstract: A small, effective and practical identification system, RIFRAN 85, has been developed and implemented on a programmable calculator EMG 666/B (product of Hungary) with 8 kbytes of operational memory. These interactive calculator programs have been used for qualitative phase analysis of X-ray diffraction patterns using standard files created by the authors, which were collected from various published data. The computer programs are written in the EMG assembly language. A specialized standard database stored on magnetic compact cassette tape is used for phase identification. Each standard pattern comprises 35 diffraction lines represented by 20 and Ir values. The identification procedure is based on the comparison of diffraction patterns of standard and unknown sample involving the chemical and match criteria.

Full paper in Portable Document Format: 422a121.pdf

 

Chemical Papers 42 (2) 121–132 (1988)

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