Investigation of Radiation Attenuation Properties for Baryte Concrete

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概要

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• In the present work the authors have studied the attenuation properties of baryte concrete as a biological shield for nuclear power plants, particle accelerators, research reactors, laboratory hot cells and different radiation sources. Investigation has been performed by measuring the transmitted. fast neutron and gamma ray spectra through cylindrical samples of barite concrete (p = 3.49 gem^<-3>). A reactor-collimated beam and neutron-gamma spectrometer with stilbene scintillator were used during measurements. A pulse shape discriminating technique based on zero cross over method was used to discriminate between neutron and gamma pulses. Removal cross-section Σ_<R,eff> and total attenuation coefficient μ_<eff> of neutrons and gamma rays were evaluated from the obtained results. Also, slow neutron fluxes have been measured using a collimated reactor beam and BF_3 counter, where the macroscopic cross sectionΣ(E_n) has been evaluated using the attenuation relation. The total macroscopic cross sections Σ_T(E_n) and total attenuation coefficient μ(E_g) of neutrons and gamma rays have been calculated based on the database cross sections. Also, the total mass attenuation coefficient μ_<eff>(E_g)/P andμ_ (E_g)/p of gamma ray have been estimated and calculated using the measured results and XCOM code respectively. Measured and calculated results were compared and a reasonable agreement was found.

• 社団法人応用物理学会の論文
• 2002-12-15

著者

• Abdo A

  Reactor And Neutron Physics Department Nuclear Research Centre Atomic Energy Authority

• ABDO A.

  Reactor and Neutron Physics Department, Nuclear Research Centre, Atomic Energy Authority

• KANSOUH W.

  Reactor and Neutron Physics Department, Nuclear Research Centre, Atomic Energy Authority

• MEGAHID R.

  Reactor and Neutron Physics Department, Nuclear Research Centre, Atomic Energy Authority

• Abdo A.

  Reactor And Neutron Physics Department Nuclear Research Centre Atomic Energy Authority

• Megahid R

  Reactor And Neutron Physics Department Nuclear Research Centre Atomic Energy Authority

• Megahid R.

  Reactor And Neutron Physics Department Nuclear Research Centre Atomic Energy Authority

• Kansouh W.

  Reactor And Neutron Physics Department Nuclear Research Centre Atomic Energy Authority

関連論文

• Investigation of Radiation Attenuation Properties for Baryte Concrete
• Homogeneous and Multilayered Shields for Neutrons and Gamma-Rays
• Magnetite Ores with Steel or Basalt for Concrete Radiation Shielding

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