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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

Development of dosimetry using detectors of diagnostic digital radiography systems

http://hdl.handle.net/2237/8818
http://hdl.handle.net/2237/8818
2fd2da60-6494-406c-8e30-b48af8795095
名前 / ファイル ライセンス アクション
MedPhys_34-166.pdf MedPhys_34-166.pdf (398.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-10-09
タイトル
タイトル Development of dosimetry using detectors of diagnostic digital radiography systems
言語 en
著者 Ariga, Eiji

× Ariga, Eiji

WEKO 19312

en Ariga, Eiji

Search repository
Ito, Shigeki

× Ito, Shigeki

WEKO 19313

en Ito, Shigeki

Search repository
Deji, Shizuhiko

× Deji, Shizuhiko

WEKO 19314

en Deji, Shizuhiko

Search repository
Saze, Takuya

× Saze, Takuya

WEKO 19315

en Saze, Takuya

Search repository
Nishizawa, Kunihide

× Nishizawa, Kunihide

WEKO 19316

en Nishizawa, Kunihide

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 imaging plate
キーワード
主題Scheme Other
主題 quality control
キーワード
主題Scheme Other
主題 sensitivity index
キーワード
主題Scheme Other
主題 dose estimation
抄録
内容記述 Dosimetry using an imaging plate (IP) of computed radiography (CR) systems was developed for quality control of output of the x-ray equipment. Sensitivity index, or the S number, of the CR systems was used for estimating exposure dose under the routine condition: exposure dose from 1.0 to 1.0×10^2 μC kg^−1, tube voltages from 50 to 120 kV, and added filtration from 0 to 4.0 mm Al. The IP was calibrated by using a 6 cc ionization chamber having traceability to the National Standard Ionization Chamber. The uncertainty concerning the fading effect was suppressed less than 1.9% by reading the latent image 4 min±5 s after irradiation at the room temperature 25.9±1.0 °C. The S number decreased linearly on the logarithmic graph regardless of the beam quality as exposure dose increased. The relationship between the exposure dose (E) and the S number was fitted by the equation E=a'×S^−b. The coefficient a' decreased when the added filtration and the tube voltage were increased. The coefficient b was 0.977±0.007 in all beam qualities. The dosimetry using the IP and the equation can estimate the exposure dose in a range from 9.0×10^−2 to 5.0 μC kg^−1 within an uncertainty of ±5% required by the Japanese Industry Standard. This dose range partially included the doses under routine condition. The doses between 1.0 and 1.0×10^2 μC kg^−1 under the routine condition can be shifted to the 5% region by using an absorber. The IP dosimetry is applicable to the quality control of the CR systems.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Association of Physicists in Medicine
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1118/1.2402911
ISSN
収録物識別子タイプ PISSN
収録物識別子 0094-2405
書誌情報 en : Medical Physics

巻 34, 号 1, p. 166-174, 発行日 2007-01
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/8818
識別子タイプ HDL
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