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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23513/ http://psasir.upm.edu.my/id/eprint/23513/1/Photon%20signature%20analysis%20using%20template%20matching.pdf |
| _version_ | 1848844778703159296 |
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| author | Bradley, David Andrew Hashim, S. Saripan, M. Iqbal Wells, Kevin Dunn, W. L. |
| author_facet | Bradley, David Andrew Hashim, S. Saripan, M. Iqbal Wells, Kevin Dunn, W. L. |
| author_sort | Bradley, David Andrew |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T08:36:20Z |
| format | Article |
| id | upm-23513 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:36:20Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-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 |
| spellingShingle | Bradley, David Andrew Hashim, S. Saripan, M. Iqbal Wells, Kevin Dunn, W. L. Photon signature analysis using template matching. |
| title | 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_short | Photon signature analysis using template matching. |
| title_sort | photon signature analysis using template matching. |
| url | http://psasir.upm.edu.my/id/eprint/23513/ http://psasir.upm.edu.my/id/eprint/23513/ http://psasir.upm.edu.my/id/eprint/23513/1/Photon%20signature%20analysis%20using%20template%20matching.pdf |