| ○種別 (必須): | □ | 学術論文 (審査論文)
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| ○言語 (必須): | □ | 英語
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| ○招待 (推奨): |
| ○審査 (推奨): | □ | Peer Review
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| ○カテゴリ (推奨): | □ | 研究
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| ○共著種別 (推奨): | □ | 国内共著 (徳島大学内研究者と国内(学外)研究者との共同研究 (国外研究者を含まない))
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| ○学究種別 (推奨): | □ | 修士課程学生による研究報告
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| ○組織 (推奨): |
| ○著者 (必須): | 1. | (英) Takegami Kazuki (日) (読)
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| 2. | 林 裕晃
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| 3. | (英) Okino Hiroki (日) (読)
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| 4. | (英) Kimoto Natsumi (日) (読)
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| 5. | (英) Maehata Itsumi (日) (読)
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| 6. | 金澤 裕樹
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| 7. | (英) Okazaki Tohru (日) (読)
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| 8. | (英) Hashizume Takuya (日) (読)
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| 9. | (英) Kobayashi Ikuo (日) (読)
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| ○題名 (必須): | □ | (英) Estimation of identification limit for a small-type OSL dosimeter on the medical images by measurement of X-ray spectra (日)
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| ○要約 (任意): | □ | (英) Our aim in this study is to derive an identification limit on a dosimeter for not disturbing a medical image when patients wear a small-type optically stimulated luminescence (OSL) dosimeter on their bodies during X-ray diagnostic imaging. For evaluation of the detection limit based on an analysis of X-ray spectra, we propose a new quantitative identification method. We performed experiments for which we used diagnostic X-ray equipment, a soft-tissue-equivalent phantom (1 20 cm), and a CdTe X-ray spectrometer assuming one pixel of the X-ray imaging detector. Then, with the following two experimental settings, corresponding X-ray spectra were measured with 40 120 kVp and 0.5 1000 mAs at a source-to-detector distance of 100 cm: (1) X-rays penetrating a soft-tissue-equivalent phantom with the OSL dosimeter attached directly on the phantom, and (2) X-rays penetrating only the soft-tissue-equivalent phantom. Next, the energy fluence and errors in the fluence were calculated from the spectra. When the energy fluence with errors concerning these two experimental conditions was estimated to be indistinctive, we defined the condition as the OSL dosimeter not being identified on the X-ray image. Based on our analysis, we determined the identification limit of the dosimeter. We then compared our results with those for the general irradiation conditions used in clinics. We found that the OSL dosimeter could not be identified under the irradiation conditions of abdominal and chest radiography, namely, one can apply the OSL dosimeter to measurement of the exposure dose in the irradiation field of X-rays without disturbing medical images. (日)
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| ○キーワード (推奨): |
| ○発行所 (推奨): | □ | Springer
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| ○誌名 (必須): | □ | Radiological Physics and Technology ([社団法人 日本放射線技術学会]/日本医学物理学会)
(pISSN: 1865-0333, eISSN: 1865-0341)
| ○ISSN (任意): | □ | 1865-0341
ISSN: 1865-0333
(pISSN: 1865-0333, eISSN: 1865-0341) Title: Radiological physics and technologyTitle(ISO): Radiol Phys TechnolPublisher: Springer (NLM Catalog)
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| ○巻 (必須): | □ | 9
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| ○号 (必須): | □ | 2
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| ○頁 (必須): | □ | 282 292
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| ○都市 (任意): |
| ○年月日 (必須): | □ | 西暦 2016年 6月 3日 (平成 28年 6月 3日)
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| ○URL (任意): |
| ○DOI (任意): | □ | 10.1007/s12194-016-0362-5 (→Scopusで検索)
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| ○PMID (任意): | □ | 27260346 (→Scopusで検索)
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| ○機関リポジトリ : | □ | 110813
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| ○備考 (任意): | 1. | (英) Article.ELocationID: 10.1007/s12194-016-0362-5 (日)
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| 2. | (英) Article.PublicationTypeList.PublicationType: Journal Article (日)
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| 3. | (英) KeywordList.Keyword: CdTe detector (日)
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| 4. | (英) KeywordList.Keyword: Diagnostic X-rays (日)
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| 5. | (英) KeywordList.Keyword: OSL dosimeter (日)
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| 6. | (英) KeywordList.Keyword: Patient exposure dose measurement (日)
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