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    129. 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 In- stitute", Moscow, Russia)

Experimental model of the device for detection of nuclear cycle materi- als by photoneutron technology

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 ex- tensive numerical optimization of the output units (converter, filter, collimator) of the de- vice 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 fis- sion products are discussed.

Dr. Maxim Donatovich Karetnikov: mdk@electronics.kiae.ru

Poster session: Ion sources, electron guns

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    130. .S.B l v, V.I.Derbilov, S.K.Esin, A.V.Feschenko, O.T.Frolov, V.S.Klenov,

    • E.

      S.Nikulin, V.L.Serov (Institute for Nuclear Research, Moscow, Russia) H- Injector for the INR Linac The H- injector has to provide a beam with the following parameters: mean current; up to 400uA; pulse duration; up to 200us; pulse repetition rate; 50Hz; energy of ions; 400keV. The surface-plasma H- ion source developed in BINP, Novosibirsk is used. Pulsed accel- erating voltage source of 400kV and pulsed high-voltage modulators for H- ion source power supply with a discharge current up to 120A and extracting voltage up to 20kV have been fabricated and tested. Commissioning of the H- injector is scheduled by the end of

2006. Dr. Eugene Semenovich Nikulin: nikulin@inr.ru

110

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