| Project/Area Number |
18591356
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Ibaraki Prefectural University of Health Science |
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Principal Investigator |
ABE Shinji Ibaraki Prefectural University of Health Science, 保健医療学部, 教授 (00274978)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Katsuyuki 茨城県立医療大学, 保健医療学部, 教授 (10129158)
FUJISAKI Tatsuya 茨城県立医療大学, 保健医療学部, 准教授 (00285058)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥2,650,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥450,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
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| Keywords | 画像診断学 / 品質管理 / イメージングプレート / X線管焦点測定 / クォリティコントロール / スターパターンカメラ法 / 解像力法 / IP法 / CRシステム / 簡便法 / サンプリング間隔 / MTF / ピンホールカメラ法 / スリットカメラ法 |
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| Research Abstract |
Comparisons of focal-spot size measurements with a direct-exposure X-ray film and an imaging plate (IP) were carried out for the slit and star resolution pattern camera techniques. As a result, compared with the direct-exposure X-ray film method, the measurements with IP were slightly large for large and small focal spots although the measurement of the micro focal-spot size was overestimated extending the tolerance level due to the sampling. For the star pattern camera technique, the differences by two kinds of detectors were little. Therefore, it was thought that the measurement of the focal-spot size with IP would become practical for the large and small focal spots if this method were aimed at the quality control in medical facilities.
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