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Proceedings Paper

PELAN applications and recent field tests
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Paper Abstract

When neutrons interact with particular nuclei, the resulting energy of the interaction can be released in the form of gamma rays, which are characteristic of the nucleus involved in the reaction. The PELAN (Pulsed Elemental Analysis with Neutrons) system uses a pulsed neutron generator and an integral thermalizing shield that induce reactions that cover most of the entire gamma ray energy spectra. The neutron generator uses a D-T reaction, which releases fast 14MeV neutrons responsible for providing information on those nuclei that mostly respond to inelastic scattering. During the time period between pulses, the fast neutrons undergo multiple inelastic interactions that lower their energy making them easier to be captured by certain nuclei; this energy spectrum of gamma rays induced by these interactions are designated as the gamma ray thermal spectra. The PELAN system has been used for a number of applications where non-intrusive, non-destructive interrogation is needed. Although Pulsed Fast Thermal Neutron Analysis (PFTNA) has been around for approximately 30 years, the technology has never been successfully commercialized for practical applications. The following report illustrates examples of the performance of on a number of applications of interrogation of Unexploded Ordnance (UXO), mine confirmation, large vehicle bombs inspection and illicit drug smuggling detection.

Paper Details

Date Published: 26 October 2004
PDF: 8 pages
Proc. SPIE 5541, Penetrating Radiation Systems and Applications VI, (26 October 2004); doi: 10.1117/12.565693
Show Author Affiliations
Juan J. Martinez, Science Applications International Corp. (United States)
Daniel T. Holslin, Science Applications International Corp. (United States)


Published in SPIE Proceedings Vol. 5541:
Penetrating Radiation Systems and Applications VI
F. Patrick Doty; Richard C. Schirato; H. Bradford Barber; Hans Roehrig, Editor(s)

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