Fast Neutron Scattering Analysis - University of Cape Town
Fast Neutron Scattering Analysis - University of Cape Town
Fast Neutron Scattering Analysis - University of Cape Town
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A group probability function<br />
indicates the relative probability<br />
that the atom fractions measured<br />
by FNSA for a test sample match<br />
those for compounds in each <strong>of</strong><br />
the four groups:<br />
Pure elements<br />
Explosives<br />
Illicit drugs<br />
Common substances<br />
Probability that sample belongs to material group<br />
100<br />
Methanol<br />
50<br />
0<br />
100<br />
50<br />
Ammonium nitrate<br />
0<br />
100<br />
Heroin simulant<br />
50<br />
Methanol<br />
Heroin simulant<br />
Ammonium<br />
nitrate<br />
Results in a highly reliable<br />
classification which is suitable to<br />
the detection <strong>of</strong> explosives and<br />
illicit drugs.<br />
0<br />
Pure<br />
Element<br />
Explosive<br />
Illicit<br />
drug<br />
Common<br />
substance
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