Application of the EGS4 Monte Carlo Code to a Study of Multilayer Gamma-Ray Exposure Buildup Factors of up to 40 mfp

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Multilayer γ-ray exposure buildup factors of up to 40mfp were calculated using an electron-photon cascade Monte Carlo code, EGS4, as a point isotropic source. A kind of splitting technique was used in the EGS4 calculations in order to obtain reasonable results at very deep penetration problems, such as 40mfp.<BR>The double-layer γ-ray exposure buildup factors were calculated for combinations of water, iron and lead for 0.1, 0.3, 0.6, 1.0, 3.0, 6.0 and 10 MeV γ-rays. The thickness of the first medium was set to 1, 5, 10 or 20mfp. As typical triple-layered shields, the calculations were performed for 4 different configurations of water, iron and lead.<BR>The behavior of multilayer buildup factors for deep penetration problems was studied using the obtained results. Buildup factors after the bounday show the tendency to vary largely depending on the material combination and the source energy of γ-rays.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 35(11), 816-829, 1998-11-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002080389
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4607768
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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