Fast neutron inspection of sea containers for the presence of “dirty bomb” |
| |
Authors: | V Valkovi? D Sudac K Na? B Veki? S Pesente |
| |
Affiliation: | a Institute Ru?er Boškovi?, Bijeni?ka c.54, 10000 Zagreb, Croatia b INFN, via Marzolo 8, 35131 Padova, Italy |
| |
Abstract: | The possibility of the detection of “dirty bomb” presence inside sea containers is evaluated. The method proposed for explosive and fissile material detection makes use of two sensors (X-rays and neutrons). A commercial imaging device based on the X-ray radiography performs a fast scan of the container, identifies a “suspect” region and provides its coordinates to the neutron based device for the final “confirmatory” inspection. In this two sensor system a 14 MeV neutron beam defined by the detection of associated alpha particles is used for interrogation of only volume elements marked by X-ray sensor. The object’s nature is determined from passive and neutron induced, gamma energy spectra measurements. Experimental results (time-of-flight and gamma energy spectra) obtained for the irradiation 30 kg of TNT, depleted uranium and other materials hidden inside the container are presented. |
| |
Keywords: | 29 30 Kv 89 20 Bb |
本文献已被 ScienceDirect 等数据库收录! |
|