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Telecommunications and Radio Engineering

Publicado 12 números por año

ISSN Imprimir: 0040-2508

ISSN En Línea: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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A HIGH-EFFICIENCY METHOD OF DETECTION OF FAST NEUTRONS FOR DETECTION SYSTEMS OF FISSIONABLE RADIOACTIVE MATERIALS

Volumen 71, Edición 18, 2012, pp. 1665-1686
DOI: 10.1615/TelecomRadEng.v71.i18.50
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SINOPSIS

Comparative measurements and detection efficiency analysis were carried out for fast neutrons from 239Pu-Be source in a broad energy range of En ∼ 0.1 ÷ 10 MeV using oxide scintillators BiGe3O12, Gd2SiO5, CdWO4, ZnWO4, ZnSe(Te,O) as well as NaI(TI), Csl(TI) and 6LiI(Eu). The experimentally obtained fast neutron detection efficiency by heavy inorganic (oxide) scintillators (Z ≥ 50) reaches ∼ 40-50%. One of the most probable mechanisms ensuring such high efficiency of fast neutron by oxide scintillators is the inelastic scattering reaction (n,n'γ) . It is concluded that heavy oxide scintillators, which at the same time are efficient gamma-detector, allow creation of a highly efficient gamma-neutron detector, which ensures high efficiency of detection of fissionable radioactive materials./i

CITADO POR
  1. Ryzhikov V.D., The highly efficient gamma-neutron detector for control of fissionable radioactive materials, Functional materials, 21, 3, 2014. Crossref

  2. Ryzhikov V.D. , Multi-layered composite detectors for neutron detection , Functional materials, 25, 1, 2018. Crossref

  3. Autonomous Neutron Facility for Detecting Fissile Nuclear Materials, East European Journal of Physics, 4, 2020. Crossref

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