Detection of illicit material using neutron activation: weakness and solutions

Poisoning the illicit materials by a neutron absorber leads to false detection when the detection is relied on combined thermal neutron activation and fast neutron activation to identify the elements of interest. The use of adjacent transmission thermal neutron detector for verifying the presence of...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2018-03, Vol.315 (3), p.557-564
Main Authors: Al-Bahi, Ali M., Soliman, Abdelfattah Y., Mohamed, Nader M. A.
Format: Article
Language:English
Subjects:
Activation
Chemistry
Chemistry and Materials Science
Detection equipment
Diagnostic Radiology
Hadrons
Heavy Ions
Hydrogen
Inorganic Chemistry
Isotopes
National security
Neutron counters
Neutrons
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Physical Chemistry
Poisoning
Poisons
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Summary:Poisoning the illicit materials by a neutron absorber leads to false detection when the detection is relied on combined thermal neutron activation and fast neutron activation to identify the elements of interest. The use of adjacent transmission thermal neutron detector for verifying the presence of neutron poisons and to trigger an alarm was investigated experimentally and using MCNP calculations. The illicit material of high hydrogen content will affect the detector response in the presence or absence of poisons.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-017-5689-9