Showing papers by "German Criminal Police Office published in 1973"
TL;DR: In this paper, the amount of the elements were determined in dependence of the firing distance and of the area around the bullet hole, where the half lives were long enough to make chemical separation of the nuclides.
Abstract: Systematic investigations of gunshot residues, deposited around the bullet hole, have been carried out. The traces were produced by firing on filter papers from distances of 5 to 200 cm using one rifle and three pistols as arms. Antimony, lead and barium were quantitatively determined after irradiating the samples in the nuclear reactor TRIGA Mainz by measurement of gamma-lines of122mSb,122Sb,207mPo and139Ba. The determinations were made purely instrumentally and-where the half lives were long enough-also after chemical separation of the nuclides. The amount of the elements were determined in dependence of the firing distance and of the area around the bullet hole.
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