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歯科口腔内撮影用フィルムの物理的特性 : 特性曲線とMTFおよびオルソタイプフィルムとの比較
http://hdl.handle.net/10097/33819
http://hdl.handle.net/10097/3381907cb35d2-f341-42ea-9f85-ce80151d1e61
名前 / ファイル | ライセンス | アクション |
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KJ00000691631.pdf (1.4 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-05-02 | |||||
タイトル | ||||||
タイトル | 歯科口腔内撮影用フィルムの物理的特性 : 特性曲線とMTFおよびオルソタイプフィルムとの比較 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | dental film | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | distance method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | characteristic curve | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | MTF | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | absorbed dose | |||||
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 | departmental bulletin paper | |||||
著者 |
石塚, 真澄
× 石塚, 真澄× 大石, 幹雄× 佐々木, 正臣 |
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著者(ヨミ) | ||||||
姓名 | ISHIDUKA, Masumi | |||||
著者(ヨミ) | ||||||
姓名 | OHISHI, Mikio | |||||
著者(ヨミ) | ||||||
姓名 | SASAKI, Masaomi | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This study is to make clear the physical characteristics of conventional dental films that was not had many reports. The characteristic curves of the dental film were measured by the distance method that is the basic method for general x-ray film. Before measurement, the scatterings about characteristic of dental film were confirmed to be as the same as general x-ray film. Then we evaluated the two kinds of dental film's sensitivity and Modulation Transfer Function (MTF) values that were measured by using a rectangle wave chart method. And we compared the absorbed dose of dental film with two sorts of ortho type film systems. One of them is used front screen and the other has no screen. The dental film was inclined to very high sensitivity at the high exposure domain. The MTF value at 10 LP/mm was 0.78 in Ultra speed film and 0.55 in Insight film. It was very high sharpness compared with the ortho type film systems. The absorbed dose of the dental film to the ortho type film with front screen was about 30 times and to that with no screen was about 1/30. Those finding indicated that the dental film is peculiar medical film not using screen system. Recently digital image that makes use of imaging plate or charge-coupled-device has taken the place of conventional x-ray film on medical imaging. On department of dentistry, digital image has also become popular gradually. From now on we have to consider the quality of digital image for dental, because the dental film has higher sharpness than the conventional medical film. | |||||
書誌情報 |
東北大学医療技術短期大学部紀要 = Bulletin of College of Medical Sciences, Tohoku University 巻 12, 号 2, p. 121-130, 発行日 2003-07-31 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09174435 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN1037430X | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
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 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | The Physical Characteristic of Dental Film : Characteristic Curve, MTF and Comparison with Ortho Type Film | |||||
出版者 | ||||||
出版者 | 東北大学医療技術短期大学部 | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | 紀要類(bulletin) | |||||
登録日 | ||||||
日付 | 2008-05-02 | |||||
日付タイプ | Created | |||||
公開日(投稿完了日) | ||||||
日付 | 2008-05-02 | |||||
日付タイプ | Created | |||||
発行日 | ||||||
日付 | 2003-07-31 | |||||
日付タイプ | Created | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | 1410970 bytes | |||||
公開範囲 | ||||||
値 | 学外 | |||||
更新日 | ||||||
日付 | 2010-01-27 | |||||
日付タイプ | Created |