ISSN: 0022-1198
CODEN: JFSCA
Page Count: 8

Computer-Aided X-Ray Diffraction Identification of Crystalline Mixtures in Forensic Science Investigations
Fischer, R
Mineralogist and physicist, Bundeskriminalamt,

Goebel, R
Mineralogist and physicist, Bundeskriminalamt,

Nat, R
Mineralogist and physicist, Bundeskriminalamt,

(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.

Keywords:
forensic science, X-ray analyses, crystalline material, computers, search match program

Paper ID: JFS11646J
DOI: 10.1520/JFS11646J
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