Analysis system for non-destructive identification of explosives and chemical warfare agents
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United States of America Patent
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May 21, 2002
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N/A
app pub date -
Oct 16, 1998
filing date -
Oct 17, 1997
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Abstract
The invention relates to an analyzer for the identification of explosives and/or chemical warfare agents, with a neutron source which causes the emission of characteristic .gamma. quanta, whereby the analysis system consists of a mobile frame to which a neutron source and a detector as well as a holder for the object are attached, with a neutron generator which contains deuterium as the target, generates neutron pulses by periodically repeated, pulsed bombardment of the target and is controlled so that short neutron pulses are emitted and repeated periodically, whereby the detector is controlled so that in cycles it detects .gamma. quanta promptly emitted from the object due to inelastic neutron scattering and neutron capture, within at least two consecutive temporal measurement windows, whereby the first measurement window at least partially overlaps temporally the neutron pulse and the subsequent second measurement window does not, whereby in the first measurement window .gamma. quanta are essentially detected due to inelastic neutron scattering and in the second measurement window they are detected due to neutron capture.
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