Computer-Aided X-Ray Diffraction Identification of Crystalline Mixtures in Forensic Science Investigations

    Volume 29, Issue 1 (January 1984)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 8


    Fischer, R
    Mineralogist and physicist, Bundeskriminalamt, Wiesbaden,

    Goebel, R
    Mineralogist and physicist, Bundeskriminalamt, Wiesbaden,

    Nat, R
    Mineralogist and physicist, Bundeskriminalamt, Wiesbaden,

    (Received 14 March 1983; accepted 1 June 1983)

    Abstract

    X-ray diffraction analysis of multiphase mixtures is sometimes rather painstaking and time-consuming by conventional manual identification using search manuals and the Joint Committee on Powder Diffraction Standards (JCPDS) file. This is the reason why a search match program has been developed in FORTRAN IV using a 32 kB Data General Nova 3/12 minicomputer with floppy disk storage to evaluate X-ray diffraction patterns in an on-line mode, regardless of intensities, permitting the mixture components to be determined from a compiled data file of forensically relevant substances. This paper discusses the problems of procedure, program setup, and results.


    Paper ID: JFS11646J

    DOI: 10.1520/JFS11646J

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    Title Computer-Aided X-Ray Diffraction Identification of Crystalline Mixtures in Forensic Science Investigations
    Symposium , 0000-00-00
    Committee E30