Related Experiment Video
Updated: Apr 25, 2026

Research and Development of High-performance Explosives
Published on: February 20, 2016
Monte Carlo simulation of explosive detection system based on a Deuterium-Deuterium (D-D) neutron generator
K Bergaoui1, N Reguigui1, C K Gary2
1Unité de recherche "Maîtrise et Développement des Techniques Nucléaires à Caractère Pacifique", National Center of Nuclear Sciences and Technologies, Technopole Sidi Thabet, BP 72-CP 2020, Tunisia.
Abstract:
An explosive detection system based on a Deuterium-Deuterium (D-D) neutron generator has been simulated using the Monte Carlo N-Particle Transport Code (MCNP5). Nuclear-based explosive detection methods can detect explosives by identifying their elemental components, especially nitrogen. Thermal neutron capture reactions have been used for detecting prompt gamma emission (10.82MeV) following radiative neutron capture by (14)N nuclei. The explosive detection system was built based on a fully high-voltage-shielded, axial D-D neutron generator with a radio frequency (RF) driven ion source and nominal yield of about 10(10) fast neutrons per second (E=2.5MeV). Polyethylene and paraffin were used as moderators with borated polyethylene and lead as neutron and gamma ray shielding, respectively. The shape and the thickness of the moderators and shields are optimized to produce the highest thermal neutron flux at the position of the explosive and the minimum total dose at the outer surfaces of the explosive detection system walls. In addition, simulation of the response functions of NaI, BGO, and LaBr3-based γ-ray detectors to different explosives is described.
More Related Videos
14:19A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
Published on: February 1, 2016
07:57Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
Published on: July 25, 2014
Related Concept Videos
Nuclear Transmutation
¹H NMR of Labile Protons: Deuterium (²H) Substitution
¹³C NMR: ¹H–¹³C Decoupling
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Nuclear Fission
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)