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Polarity effects of commercially plane-parallel ionization chambers in therapeutic electron dosimetry
https://repo.qst.go.jp/records/57360
https://repo.qst.go.jp/records/5736083ebdc6d-8fdc-4e19-b7c7-abf4d6ee4f91
Item type | 一般雑誌記事 / Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2008-02-08 | |||||
タイトル | ||||||
タイトル | Polarity effects of commercially plane-parallel ionization chambers in therapeutic electron dosimetry | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Fujisaki, Tatsuya
× Fujisaki, Tatsuya× Hiraoka, Takeshi× Abe, Shinji× Saitoh, Hidetoshi× 平岡 武× 阿部 慎司 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Plane-parallel ionization chambers exhibit polarity effects with low energy electron beams in therapeutic electron dosimetry. In this report, the polarity correction factors for ten commercially available plane-parallel ionization chambers were investigated as a function of mean energy. The factors was measured at phantom surface for ten chambers and depths along depth-dose curves for five chambers of nominal 4, 6, 9, 12 and 15 MeV electron beams. The polarity correction factors for all chambers as phantom surface were 0.5% or less in mean electron energy range of 3.5 to 14.7 MeV. The factors for five chambers in water were also shown to increase substantially with mean energy of about 3 MeV or less. | |||||
書誌情報 |
Medical Standard Dose 巻 12, 号 2, p. 51-55, 発行日 2007-10 |