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タイトル
  • en Angular distributions of absorbed dose of Bremsstrahlung and secondary electrons induced by 18-, 28- and 38-MeV electron beams in thick targets
作成者
    • en Takada, Masashi
    • en Kosako, Kazuaki
    • en Oishi, Koji
    • en Nakamura, Takashi
    • en Sato, Kouichi
    • en Kamiyama, Takashi
アクセス権 open access
権利情報
  • en This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Radiation Protection Dosimetry following peer review. The definitive publisher-authenticated version Angular distributions of absorbed dose of Bremsstrahlung and secondary electrons induced by 18-, 28- and 38-MeV electron beams in thick targets is available online at: http://rpd.oxfordjournals.org/content/153/3/369.full.
主題
  • NDC 444
内容注記
  • Abstract en Angular distributions of absorbed dose of Bremsstrahlung photons and secondary electrons at a wide range of emission angles from 0 to 135, were experimentally obtained using an ion chamber with a 0.6 cm(3) air volume covered with or without a build-up cap. The Bremsstrahlung photons and electrons were produced by 18-, 28- and 38-MeV electron beams bombarding tungsten, copper, aluminium and carbon targets. The absorbed doses were also calculated from simulated photon and electron energy spectra by multiplying simulated response functions of the ion chambers, simulated with the MCNPX code. Calculated-to-experimental (C/E) dose ratios obtained are from 0.70 to 1.57 for high-Z targets of W and Cu, from 15 to 135 and the C/E range from 0.6 to 1.4 at 0; however, the values of C/E for low-Z targets of Al and C are from 0.5 to 1.8 from 0 to 135. Angular distributions at the forward angles decrease with increasing angles; on the other hand, the angular distributions at the backward angles depend on the target species. The dependences of absorbed doses on electron energy and target thickness were compared between the measured and simulated results. The attenuation profiles of absorbed doses of Bremsstrahlung beams at 0, 30 and 135 were also measured.
出版者 en Oxford University Press
日付
    Issued2013-03
言語
  • eng
資源タイプ journal article
出版タイプ AM
資源識別子 HDL http://hdl.handle.net/2115/54776
関連
  • isVersionOf DOI https://doi.org/10.1093/rpd/ncs114
収録誌情報
    • PISSN 0144-8420
      • en Radiation Protection Dosimetry
      • 巻153 号3 開始ページ369 終了ページ383
ファイル
    • fulltext mtakada.pdf
    • 631.68 KB (application/pdf)
      • Issued2013-03
コンテンツ更新日時 2023-07-26