A METHOD FOR DETECTION OF EXPLOSIVES BASED ON NUCLEAR-RESONANCE ABSORPTION OF GAMMA-RAYS IN N-14

Authors
VARTSKY D ENGLER G GOLDBERG MB
Citation
D. Vartsky et al., A METHOD FOR DETECTION OF EXPLOSIVES BASED ON NUCLEAR-RESONANCE ABSORPTION OF GAMMA-RAYS IN N-14, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 348(2-3), 1994, pp. 688-691
Citations number
5
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
348
Issue
2-3
Year of publication
1994
Pages
688 - 691
Database
ISI
SICI code
0168-9002(1994)348:2-3<688:AMFDOE>2.0.ZU;2-J
Abstract
The physical principles the of Nuclear Resonance Absorption (NRA) meth od and its application to explosives detection are described. In this method, the object to be tested is scanned by a beam of 9.17 MeV gamma rays which undergoes resonant attenuation whenever the beam encounter s regions of nitrogen concentration. This resonant component of attenu ation is detected using an array of gamma ray detectors containing a n itrogen-rich medium. From the reconstructed spatial distribution of ni trogen density obtained in multi-view scanning, the presence of an exp losive can be determined.