Development of a full three dimensional dose distribution measurement system for intensity modulated proton therapy
| Project/Area Number |
24601013
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
医学物理学・放射線技術学
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| Research Institution | Nagoya City University |
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Principal Investigator |
TOSHITO Toshiyuki 名古屋市立大学, 医学(系)研究科(研究院), 研究員 (30377965)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Mitsuhiro 名古屋大学, 大学院理学研究科, 教授 (90183889)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 強度変調陽子線治療 / シンチレーティングファイバー / 品質管理 / 陽子線治療 / シンチレーションファイバー |
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| Outline of Final Research Achievements |
We developed fully three-dimensional dose distribution measurement system for the purpose of quality assurance for intensity modulated proton therapy. A scintillating fiber block was used as a detector. We manufactured it by stacking approximately 18000 500 μm-diameter-scintillating fibers. It measures 90 mm x 62 mm x 107 mm. We conducted beam test to measure basic characteristics of the detector by using proton beam at Nagoya Proton Therapy Center. Measurements of dose distribution for double-scattered and spot scanning irradiation were carried out by taking images with the 10 degree step rotation of the detector system. A software to reconstruct three-dimensional dose distribution using a Maximum-Likelihood Expectation Maximization algorithm was developed. Finally we obtained 1 mm pitch dose distribution by using this system.
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Report
(4 results)
Research Products
(8 results)
