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Photon signature analysis using template matching.

We describe an approach to detect improvised explosive devices (IEDs) by using a template matching procedure. This approach relies on the signature due to backstreaming γ photons from various targets. In this work we have simulated cylindrical targets of aluminum, iron, copper, water and ammonium ni...

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Main Authors: Bradley, David Andrew, Hashim, S., Saripan, M. Iqbal, Wells, Kevin, Dunn, W. L.
Format: Article
Language:English
Published: 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23513/1/Photon%20signature%20analysis%20using%20template%20matching.pdf
http://psasir.upm.edu.my/id/eprint/23513/
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spelling my.upm.eprints.235132015-08-26T04:42:29Z http://psasir.upm.edu.my/id/eprint/23513/ Photon signature analysis using template matching. Bradley, David Andrew Hashim, S. Saripan, M. Iqbal Wells, Kevin Dunn, W. L. We describe an approach to detect improvised explosive devices (IEDs) by using a template matching procedure. This approach relies on the signature due to backstreaming γ photons from various targets. In this work we have simulated cylindrical targets of aluminum, iron, copper, water and ammonium nitrate (nitrogen-rich fertilizer). We simulate 3.5 MeV source photons distributed on a plane inside a shielded area using Monte Carlo N-Particle (MCNPTM) code version 5 (V5). The 3.5 MeV source gamma rays yield 511 keV peaks due to pair production and scattered gamma rays. In this work, we simulate capture of those photons that backstream, after impinging on the target element, toward a NaI detector. The captured backstreamed photons are expected to produce a unique spectrum that will become part of a simple signal processing recognition system based on the template matching method. Different elements were simulated using different sets of random numbers in the Monte Carlo simulation. To date, the sum of absolute differences (SAD) method has been used to match the template. In the examples investigated, template matching was found to detect all elements correctly. 2011-10-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23513/1/Photon%20signature%20analysis%20using%20template%20matching.pdf Bradley, David Andrew and Hashim, S. and Saripan, M. Iqbal and Wells, Kevin and Dunn, W. L. (2011) Photon signature analysis using template matching. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 652 (1). pp. 466-469. ISSN 0168-9002 10.1016/j.nima.2011.01.142
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description We describe an approach to detect improvised explosive devices (IEDs) by using a template matching procedure. This approach relies on the signature due to backstreaming γ photons from various targets. In this work we have simulated cylindrical targets of aluminum, iron, copper, water and ammonium nitrate (nitrogen-rich fertilizer). We simulate 3.5 MeV source photons distributed on a plane inside a shielded area using Monte Carlo N-Particle (MCNPTM) code version 5 (V5). The 3.5 MeV source gamma rays yield 511 keV peaks due to pair production and scattered gamma rays. In this work, we simulate capture of those photons that backstream, after impinging on the target element, toward a NaI detector. The captured backstreamed photons are expected to produce a unique spectrum that will become part of a simple signal processing recognition system based on the template matching method. Different elements were simulated using different sets of random numbers in the Monte Carlo simulation. To date, the sum of absolute differences (SAD) method has been used to match the template. In the examples investigated, template matching was found to detect all elements correctly.
format Article
author Bradley, David Andrew
Hashim, S.
Saripan, M. Iqbal
Wells, Kevin
Dunn, W. L.
spellingShingle Bradley, David Andrew
Hashim, S.
Saripan, M. Iqbal
Wells, Kevin
Dunn, W. L.
Photon signature analysis using template matching.
author_facet Bradley, David Andrew
Hashim, S.
Saripan, M. Iqbal
Wells, Kevin
Dunn, W. L.
author_sort Bradley, David Andrew
title Photon signature analysis using template matching.
title_short Photon signature analysis using template matching.
title_full Photon signature analysis using template matching.
title_fullStr Photon signature analysis using template matching.
title_full_unstemmed Photon signature analysis using template matching.
title_sort photon signature analysis using template matching.
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23513/1/Photon%20signature%20analysis%20using%20template%20matching.pdf
http://psasir.upm.edu.my/id/eprint/23513/
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score 13.2442

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