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Title: NELIS - a Neutron Inspection System for Detection of Illicit Drugs

Abstract

NELIS (Neutron ELemental Inspection System) is currently being developed to inspect cargo pallets for illicit drugs. NELIS must be used in conjunction with an x-ray imaging system to optimize the inspection capabilities at ports of entry. Pulsed fast-thermal neutron analysis is utilized to measure the major and minor chemical elements in a non-destructive and non-intrusive manner. Fourteen-MeV neutrons produced with a pulsed d-T neutron generator are the interrogating particles. NELIS analyzes the characteristic gamma rays emitted from the object that are produced by nuclear reactions from fast and thermal neutrons. These gamma rays have different energies for each chemical element, and act as their fingerprints. Since the elemental composition of illicit drugs is quite different from that of innocuous materials, drugs hidden in pallets are identified through the comparison of expected and measured elemental composition and ratios. Results of tests of the system will be discussed.

Authors:
; ;  [1]
  1. Applied Physics Institute, Western Kentucky University, 1 Big Red Way, Bowling Green, KY 42101 (United States)
Publication Date:
OSTI Identifier:
20634249
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 680; Journal Issue: 1; Conference: 17. international conference on the application of accelerators in research and industry, Denton, TX (United States), 12-16 Nov 2002; Other Information: DOI: 10.1063/1.1619863; (c) 2003 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CARGO; DRUGS; FAST NEUTRONS; GAMMA RADIATION; GAMMA SPECTRA; INSPECTION; NEUTRON GENERATORS; NEUTRON REACTIONS; PHOTON EMISSION; SECURITY; THERMAL NEUTRONS

Citation Formats

Barzilov, Alexander P, Womble, Phillip C, and Vourvopoulos, George. NELIS - a Neutron Inspection System for Detection of Illicit Drugs. United States: N. p., 2003. Web. doi:10.1063/1.1619863.
Barzilov, Alexander P, Womble, Phillip C, & Vourvopoulos, George. NELIS - a Neutron Inspection System for Detection of Illicit Drugs. United States. https://doi.org/10.1063/1.1619863
Barzilov, Alexander P, Womble, Phillip C, and Vourvopoulos, George. Tue . "NELIS - a Neutron Inspection System for Detection of Illicit Drugs". United States. https://doi.org/10.1063/1.1619863.
@article{osti_20634249,
title = {NELIS - a Neutron Inspection System for Detection of Illicit Drugs},
author = {Barzilov, Alexander P and Womble, Phillip C and Vourvopoulos, George},
abstractNote = {NELIS (Neutron ELemental Inspection System) is currently being developed to inspect cargo pallets for illicit drugs. NELIS must be used in conjunction with an x-ray imaging system to optimize the inspection capabilities at ports of entry. Pulsed fast-thermal neutron analysis is utilized to measure the major and minor chemical elements in a non-destructive and non-intrusive manner. Fourteen-MeV neutrons produced with a pulsed d-T neutron generator are the interrogating particles. NELIS analyzes the characteristic gamma rays emitted from the object that are produced by nuclear reactions from fast and thermal neutrons. These gamma rays have different energies for each chemical element, and act as their fingerprints. Since the elemental composition of illicit drugs is quite different from that of innocuous materials, drugs hidden in pallets are identified through the comparison of expected and measured elemental composition and ratios. Results of tests of the system will be discussed.},
doi = {10.1063/1.1619863},
url = {https://www.osti.gov/biblio/20634249}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 680,
place = {United States},
year = {2003},
month = {8}
}