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KAKEN_24791336seika.pdf
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Download
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:214.0 KB
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:Dec 11, 2014 |
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Total downloads since Dec 11, 2014 : 459
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有機蛍光体を用いたIMRT品質保証・管理の精度評価法の確立
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ユウキ ケイコウタイ オ モチイタ IMRT ヒンシツ ホショウ・カンリ ノ セイド ヒョウカホウ ノ カクリツ
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Yuki keikotai o mochiita IMRT hinshitsu hosho kanri no seido hyokaho no kakuritsu
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Establishment of accuracy management system in IMRT QA/QC using organic phosphor
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花田, 剛士
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ハナダ, タカシ
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Hanada, Takashi
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慶應義塾大学・医学部・助教
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Research team head
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科研費研究者番号 : 30571054
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2014
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科学研究費補助金研究成果報告書
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2013
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本研究では、電荷結合素子カメラ‐有機蛍光体システムによる面積型の検出器を用いた強度変調放射線治療の照射野内の線量精度評価および機器精度評価を行った。有機蛍光体の材質に水等価物質のプラスチックシンチレータを使用した面積型検出器と実験系の改善を図るための反射鏡を製作した。加速器からの入射ビームにより形成される吸収線量やマルチリーフコリメータの停止位置、移動距離などの情報取得が、簡便かつ高精度で同時に取得可能になった。このシステムは、実際の臨床に適応できる精度に達成したと考え、放射線治療の品質保証の向上、より安全な治療が期待された。
In this study, the dose and mechanical accuracy in irradiation field for intensity modulated radiation therapy using the charge coupled device camera-organic phosphor with area type detector system was evaluated. The area type detector, which is made from plastic scintillator known as water equivalent material, and reflecting mirror were fabricated. Acquisitions of information such as stopping positions and moving distance related to multileaf collimator, and absorbed dose were able to obtain simultaneously with high precision easily. The system was achieved within the precision at clinical adaptive level, and the improvement of the quality assurance and more safely treatment were expected.
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研究種目 : 若手研究(B)
研究期間 : 2012～2013
課題番号 : 24791336
研究分野 : 医歯薬学
科研費の分科・細目 : 内科系臨床医学・放射線科学
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