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Development, Beam Characterization and Chromosomal Effectiveness of X-rays of RBC Characteristic X-ray Generator
http://hdl.handle.net/10069/16849
http://hdl.handle.net/10069/1684909ae26d7-01a1-4f0d-af07-b307ef731c9f
名前 / ファイル | ライセンス | アクション |
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jRR47_2_103.pdf (1.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-30 | |||||
タイトル | ||||||
タイトル | Development, Beam Characterization and Chromosomal Effectiveness of X-rays of RBC Characteristic X-ray Generator | |||||
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 | journal article | |||||
著者 |
Endo, Satoru
× Endo, Satoru× Hoshi, Masaharu× Takada, Jun× Takatsuji, Toshihiro× Ejima, Yosuke× Saigusa, Shin× Tachibana, Akira× Sasaki, Masao S. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A characteristic hot-filament type X-ray generator was constructed for irradiation of cultured cells. The source provides copper K, iron K, chromium K, molybdenum L, aluminium K and carbon K shell characteristic X-rays. When cultured mouse m5S cells were irradiated and frequencies of dicentrics were fitted to a linear-quadratic model, Y=αD+βD^2, the chromosomal effectiveness was not a simple function of photon energy. The α-terms increased with the decrease of the photon energy and then decreased with further decrease of the energy with an inflection point at around 10 keV. The β-terms stayed constant for the photon energy down to 10 keV and then increased with further decrease of energy. Below 10 keV, the relative biological effectiveness (RBE) at low doses was proportional to the photon energy, which contrasted to that for high energy X- or γ-rays where the RBE was inversely related with the photon energy. The reversion of the energy dependency occurred at around 1-2 Gy, where the RBE of soft X-rays was insensitive to X-ray energy. The reversion of energy-RBE relation at a moderate dose may shed light on the controversy on energy dependency of RBE of ultrasoft X-rays in cell survival experiments. | |||||
書誌情報 |
Journal of radiation research 巻 47, 号 2, p. 103-112, 発行日 2006-06-30 |
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出版者 | ||||||
出版者 | 日本放射線影響学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 04493060 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00705792 | |||||
権利 | ||||||
権利情報 | 日本放射線影響学会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of radiation research. 2006, 47(2), p.103-112 |