Author/Authors :
Norman ، نويسنده , , Eric B and Prussin، نويسنده , , Stanley G and Larimer، نويسنده , , Ruth-Mary and Shugart، نويسنده , , Howard and Browne، نويسنده , , Edgardo and Smith، نويسنده , , Alan R and McDonald، نويسنده , , Richard J and Nitsche، نويسنده , , Heino and Gupta، نويسنده , , Puja and Frank، نويسنده , , Michael I and Gosnell، نويسنده , , Thomas B، نويسنده ,
Abstract :
The spectral and temporal dependence of β-delayed γ rays in the range E⩾3.0 MeV from thermal–neutron-induced fission are shown to be characteristic signatures of 235U and 239Pu. For the interrogation of large sea-going cargo containers filled with hydrogenous materials, β-delayed γ rays can offer an increase in sensitivity for the detection of these and other fissile materials by as much as 103–104 compared to the detection of β-delayed neutrons.
Keywords :
Fissile material detection , GE , Plastic scintillator detectors , 239Pu , 235U
