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Container inspection utilizing 14 MeV neutrons (CROSBI ID 229102)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Valković, Vladivoj ; Sudac, Davorin ; Nađ, Karlo ; Obhođaš, Jasmina Container inspection utilizing 14 MeV neutrons // IEEE transactions on nuclear science, 63 (2016), 3; 1536-1543. doi: 10.1109/TNS.2016.2521925

Podaci o odgovornosti

Valković, Vladivoj ; Sudac, Davorin ; Nađ, Karlo ; Obhođaš, Jasmina

engleski

Container inspection utilizing 14 MeV neutrons

A proposal for an autonomous and flexible ship container inspection system is presented. This could be accomplished by the incorporation of an inspection system on various container transportation devices (straddle carriers, yard gentry cranes, automated guided vehicles, trailers). The configuration is terminal specific and it should be defined by the container terminal operator. This enables that no part of the port operational area is used for inspection. The inspection scenario includes container transfer from ship to transportation device with the inspection unit mounted on it. The inspection is performed during actual container movement to the container location. A neutron generator without associated alpha particle detection is used. This allows the use of higher neutron intensities ( 5x10^9 - 10^10 n/s in 4pi ). The inspected container is stationary in the “inspection position” on the transportation device while the “inspection unit” moves along its side. The following analytical methods will be used simultaneously: neutron radiography, X- ray radiography, neutron activation analysis, (n, gamma ) and (n, n’gamma ) reactions, neutron absorption. and scattering, X-ray backscattering. The neutron techniques will utilize “smart collimators” for neutrons and gamma rays, both emitted and detected. The inspected voxel is defined by the intersection of the neutron generator and the detectors solid angles. The container inspection protocol is based on identification of discrepancies between the cargo manifest, elemental “fingerprint” and radiography profiles. In addition, the information on container weight is obtained during the container transport and screening by measuring of density of material in the container.

Activation analysis; container inspection; gamma ray spectra; neutron absorption; neutron scattering; neutrons; radiography; x-ray backscattering

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Podaci o izdanju

63 (3)

2016.

1536-1543

objavljeno

0018-9499

10.1109/TNS.2016.2521925

Povezanost rada

Fizika

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