Design of an explosive detection system using Monte Carlo method

Regardless the motivation terrorism is the most important risk for the national security in many countries. Attacks with explosives are the most common method used by terrorists. Therefore several procedures to detect explosives are utilized; among these methods are the use of neutrons and photons....

Full description

Saved in:
Bibliographic Details
Published in:Applied radiation and isotopes 2016-11, Vol.117, p.27-31
Main Authors: Hernández-Adame, Pablo Luis, Medina-Castro, Diego, Rodriguez-Ibarra, Johanna Lizbeth, Salas-Luevano, Miguel Angel, Vega-Carrillo, Hector Rene
Format: Article
Language:English
Subjects:
Americium - analysis
Americium - chemistry
Computer Simulation
Computer-Aided Design
Dose
Equipment Design
Equipment Failure Analysis
Explosive Agents - analysis
Explosive Agents - chemistry
Explosives
Gamma rays
MCNPX
Models, Statistical
Monte Carlo Method
Neutron Capture Therapy - instrumentation
Neutron Capture Therapy - methods
Neutrons
Reproducibility of Results
Sensitivity and Specificity
Spectrometry, Gamma - instrumentation
Spectrometry, Gamma - methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Regardless the motivation terrorism is the most important risk for the national security in many countries. Attacks with explosives are the most common method used by terrorists. Therefore several procedures to detect explosives are utilized; among these methods are the use of neutrons and photons. In this study the Monte Carlo method an explosive detection system using a 241AmBe neutron source was designed. In the design light water, paraffin, polyethylene, and graphite were used as moderators. In the work the explosive RDX was used and the induced gamma rays due to neutron capture in the explosive was estimated using NaI(Tl) and HPGe detectors. When light water is used as moderator and HPGe as the detector the system has the best performance allowing distinguishing between the explosive and urea. For the final design the Ambient dose equivalent for neutrons and photons were estimated along the radial and axial axis. •A system to detect explosives was designed using the MCNPX code.•The system uses the gamma-rays induced by neutron capture.•As neutron source the isotopic 241AmBe was used.•In the design, the performance of four moderators were included.•The NaI(Tl) and HPGe were used as photon detectors
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2016.04.008