Gamma signatures of the C-BORD Tagged Neutron Inspection System
CEA, DEN, Cadarache, Nuclear Measurement Laboratory, F-13108 Saint-Paul-lez-Durance, France
CEA, DRT, LIST, Saclay, F-91191 Gif-Sur-Yvette, France
Dipartimento di Fisica e Astronomia e INFN di Padova, via Marzolo, 8, I-35131 Padova, Italy
CAEN S.p.A, Via Vetraia, 11, I-55049 Viareggio, Italy
Published online: 10 January 2018
In the frame of C-BORD project (H2020 program of the EU), a Rapidly relocatable Tagged Neutron Inspection System (RRTNIS) is being developed to non-intrusively detect explosives, chemical threats, and other illicit goods in cargo containers. Material identification is performed through gamma spectroscopy, using twenty NaI detectors and four LaBr3 detectors, to determine the different elements composing the inspected item from their specific gamma signatures induced by fast neutrons. This is performed using an unfolding algorithm to decompose the energy spectrum of a suspect item, selected by X-ray radiography and on which the RRTNIS inspection is focused, on a database of pure element gamma signatures. This paper reports on simulated signatures for the NaI and LaBr3 detectors, constructed using the MCNP6 code. First experimental spectra of a few elements of interest are also presented.
Key words: C-BORD project / Rapidly Relocatable Tagged Neutron Inspection System / fast neutron activation analysis / inelastic scattering gamma rays / MCNP6
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).