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Karetnikov, M.

Paper Title Page

MOLP25

 Experimental Model Of The Device For Detection Of Nuclear Cycle Materials By Photoneutron Technology  

  • A.Bakalyarov, M.Karetnikov, V.Lebedev, E.Meleshko, B.Obinyakov, N.Tupikin, Y G.akovlev, V.Lubkov, A.Makarov, A.Sukharev
    Russion research Center "Kurchatov Institute", Moscow, Russia

The inherent complexity of sea container control makes them potentially dangerous for smuggling nuclear materials. The experts believe that only active technologies founded on recording the products of induced fission of nuclear materials might solve the problem. The paper reports on the experimental model of the device on the basis of linear electron accelerator U-28 for detection of nuclear materials by photoneutron technology. The extensive numerical optimization of the output units (converter, filter, collimator) of the device was carried out. The efficiency of detection of various types of sensitive material by recording prompt photoneutrons, delayed neutrons and gamma-rays was simulated. The various types of container load (empty, fully loaded with material with low, medium, or large atomic number) and various positions of the sensitive materials in the container are considered. The problems of radiation damage and activation of the objects are analyzed. The U-28 accelerator was upgraded for the experiments. Two options (magnetic deflector and beam filter) for utilization of the electron beam after converter has been considered. The setup of experimental device and the results of recording the prompt and delayed fission products are discussed.