| Project/Area Number |
25630430
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
WATANABE Kenichi 名古屋大学, 工学(系)研究科(研究院), 准教授 (30324461)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAZAKI Atsushi 名古屋大学, 大学院工学研究科, 助教 (10436537)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 後方散乱X線 / トモグラフィ / 大型構造物診断 / 非破壊検査 / X線 / インフラ診断 / 非破壊分析 / 断層撮像 |
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| Outline of Final Research Achievements |
As development of backscatter X-ray tomography for non-destructive inspection of large structures, we conducted construction of a prototype system, consideration of optimum image reconstruction and performance evaluation for the developed system. We constructed the prototype backscatter X-ray tomography system consisting of a X-ray tube, a medical X-ray flat-panel detector and parallel plate collimators. Parameters of the parallel plate collimators were concluded to be 0.5mm thick and 0.5mm spacing. ML-EM method was considered to be optimum as an image reconstruction algorithm. Consequently, we successfully obtained a tomographic image with backscatter X-ray system when the parallel plate collimator was set in seven directions with 15 degrees pitch. We concluded that the backscatter X-ray system is feasible as non-destructive inspection for large structures.
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