Research ArticleOpen AccessGoogle Scholar indexed
Investigation the Effects of Neutron Source Number and Arrangement in Landmines Detection by Thermal Neutron Capture Gamma Ray Analysis
Physics Department, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
Physics Department, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
- 1 Physics Department, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
- 2 Physics Department, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
World Journal of Nuclear Science and Technology·Volume 02 (2012)·Pages 54–57·Published 23 April 2012·DOI10.4236/wjnst.2012.22009
Copy link · social · email
Abstract
Thermal neutron capture can be used as a successful technique for detection of non-metallic landmines via the detection of their constituent like nitrogen. Recently, it has been shown that the detection of 10.829 MeV photons from the 14 N(n, γ ) 15 N reaction can be used for finding the landmines. In this method a high-energy neutron source like 241Am-Be inside water as a moderator is used to have thermal neutron. In this paper we have investigated the effects of the number of neutron sources and their orientation on the gamma ray spectrum by using MCNP4C code. The best case for number of sources and their positions and orientations have been achieved corresponding to maximum flux of 10.829 MeV photons.
KeywordsMonte Carlo SimulationLandmine DetectionThermal Neutron CaptureNeutron SourceSource Arrangement
- J. C. Campbell and A. M. Jacobs, “Detection of Buried Landmines by Backscatter Imaging,” Nuclear Science and Engineering, Vol. 110, 1992, pp. 417-424.
- M. Maucec and R. J. de Meijer, “Monte Carlo Simulations as a Feasibility Tool for Non-Metallic Landmine Detection by Thermal-Neutron Backscattering,” Applied Radiation and Isotopes, Vol. 56, No. 6, 2002, pp. 837-846. doi:10.1016/S0969-8043(02)00064-7
- K. M. Dawson-Howe and T. G. Williams, “The Detection of Buried Landmines Using Probing Robots,” Robotics and Autonomous System, Vol. 23, No. 4, 1998, pp. 235-243. doi:10.1016/S0921-8890(98)00010-4
- A. V. Kuznetsov, A. V. Evsenin and I. Y. Gorshkov, “Detection of Buried Explosives Using Portable Neutron Sources with Nanosecond Timing,” Applied Radiation and Isotopes, Vol. 61, No. 1, 2004, pp. 51-57. doi:10.1016/j.apradiso.2004.02.016
- M. Lunardon, G. Nebbia, S. Pesente, G. Viesti and V. Filippini, “Detection of Landmines by Using 14 MeV Neutron Tagged Beams,” Applied Radiation and Isotopes, Vol. 61, No. 1, 2004, pp. 43-49. doi:10.1016/j.apradiso.2004.02.015
- M. Maucec and C. Rigollet, “Monte Carlo Simulations to Advance Characterisation of Landmines by Pulsed Fast/ Thermal Neutron Analysis,” Applied Radiation and Isotopes, Vol. 61, No. 1, 2004, pp. 35-42. doi:10.1016/j.apradiso.2004.02.014
- A. Pazirandeh, M. Azizi and S. F. Masoudi, “Monte Carlo Assessment of Soil Moisture Effect on High-Energy Thermal Neutron Capture Gamma-Ray by14N,” Applied Radiation and Isotopes, Vol. 64, No. 1, 2006, pp. 1-6. doi:10.1016/j.apradiso.2005.05.053
- D. R. Ochbelagh, H. M. Hakimabad and R. I. Najafabadi, “The Soil Moisture and Its Effect on the Detection of Buried Hydrogenous Material by Neutron Backscattering Technique,” Radiation Physics and Chemistry, Vol. 78, No. 5, 2009, pp. 303-306. doi:10.1016/j.radphyschem.2009.02.002
- J. Obhodas, D. Sudac, K. Nad, V. Valkovic, G. Nebbia and G. Viesti, “The Soil Moisture and Its Relevance to the Landmine Detection by Neutron Backscattering Technique,” Nuclear Instruments and Methods in Physics Research Section B, Vol. 213, 2004, pp. 445-451. doi:10.1016/S0168-583X(03)01587-8
- S. Pesente, M. Cinausero, D. Fabris and E. Fioretto, “Effects of Soil Moisture on the Detection of Buried Explosives by Radiative Neutron Capture,” Nuclear Instruments and Methods in Physics Research Section A, Vol. 459, No. 3, 2001, pp. 577-580. doi:10.1016/S0168-9002(00)01058-5
- H. M. Hakimabad, A. V. Noghreiyan and H. Panjeh, “Improving the Moderator Geometry of an Anti-Personnel Landmine Detection System,” Applied Radiation and Isotopes, Vol. 66, No. 5, 2008, pp. 606-611.