Three dimensional imaging of defect distributions using ultra-short pulsed bremsstrahlung gamma rays

• Project/Area Number: 25790091
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: TAIRA Yoshitaka 独立行政法人産業技術総合研究所, 分析計測標準研究部門, 研究員 (60635803)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 超短パルスガンマ線 / 陽電子消滅寿命測定 / Yb:Lu2O3シンチレータ / 制動放射 / 電子加速器 / ポジトロン断層法 / 陽電子寿命 / PET

Outline of Final Research Achievements

I propose a method for obtaining three-dimensional imaging measurements of the defect distribution inside industrial materials by using a photon-induced positron annihilation lifetime spectroscopy. A compact and fast response detector that uses an Yb3+-doped Lu2O3 scintillator and a photomultiplier tube was developed and tested to improve a spatial resolution and perform an in-situ measurement. I carried out a feasibility study for the three-dimensional imaging by using the developed detector. I found that time resolution is needed to improve for measuring short positron lifetime. An electron beam current is also needed to increase more than 1000 times and detectors is arrayed around the sample to increase an event rate.

Research Products

• [Journal Article] Development of a compact and fast response detector using Yb:Lu2O3 scintillator for lifetime sensitive positron emission tomography (2014)
  • Author(s): Y. Taira, R. Kuroda, M. Tanaka, N. Oshima, B. E. O’Rourke, R. Suzuki, H. Toyokawa, K. Watanabe, T. Yanagida, H. Yagi, T. Yanagitani
  • Journal Title: Journal of Instrumentation Volume: 9 Issue: 05 Pages: C05036-C05036
  • DOI: 10.1088/1748-0221/9/05/c05036
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 産総研 S バンド小型リニアック施設の現状 (2014)
  • Author(s): Y. Taira, R. Kuroda, M. Yasumoto, M. Tanaka, H. Ikeura, N. Sei, H. Ogawa, E. Miura, H. Toyokawa, K. Yamada
  • Journal Title: Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan Volume: - Pages: 321-323
  • Open Access
• [Journal Article] Photon-induced positron annihilation lifetime spectroscopy using an S-band compact electron linac (2014)
  • Author(s): Y. Taira, R. Kuroda, M. Tanaka, M. Kumaki, N. Oshima, B. E. O’Rourke, R. Suzuki, H. Toyokawa
  • Journal Title: Radiation Physics and Chemistry Volume: 95 Pages: 30-33
  • DOI: 10.1016/j.radphyschem.2012.11.012
  • Peer Reviewed
• [Presentation] 産総研Ｓバンド小型リニアック施設の現状 (2014)
  • Author(s): 平義隆、黒田 隆之助、安本 正人、田中 真人、池浦 広美、清 紀弘、小川 博嗣、三浦 永祐、豊川 弘之、山田 家和勝
  • Organizer: 第11回日本加速器学会年会
  • Place of Presentation: リンクステーションホール青森
  • Year and Date: 2014-08-09 – 2014-08-11
• [Presentation] Development of a fast response detector using Yb:Lu2O3 scintillator for lifetime measurement positron emission tomography (2014)
  • Author(s): Y. Taira, R. Kuroda, M. Tanaka, N. Oshima, B. E. O’Rourke, R. Suzuki, H. Toyokawa, K. Watanabe, T. Yanagida, H. Yagi, T. Yanagitani
  • Organizer: Trombay Symposium on Radiation & Photochemistry
  • Place of Presentation: Mumbai, India
• [Presentation] 小型シンチレータを用いた欠陥分布の３次元イメージングに関する研究 (2014)
  • Author(s): 平義隆、黒田隆之助、田中真人、大島永康、ブライアンオローク、鈴木良一、豊川弘之、渡辺賢一、柳田健之、八木秀喜、柳谷高公
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] Development of Photon-induced Positron Annihilation Lifetime Spectroscopy using an S-band Compact Electron Linac (2013)
  • Author(s): Y. Taira, R. Kuroda, B. E. O’Rourke, N. Oshima, R. Suzuki, M. Tanaka, H. Toyokawa, T. Yanagida, K. Watanabe
  • Organizer: International Particle Accelerator Conference 2013
  • Place of Presentation: Shanghai, China
• [Presentation] Development of a compact and fast response detector for lifetime measurement positron emission tomography (2013)
  • Author(s): Y. Taira, R. Kuroda, M. Tanaka, N. Oshima, B. E. O’Rourke, R. Suzuki, H. Toyokawa, K. Watanabe, T. Yanagida, H. Yagi, T. Yanagitani
  • Organizer: 15th International Workshop on Radiation Imaging Detectors
  • Place of Presentation: Paris, France
• [Presentation] Yb:Lu2O3シンチレータと超短パルスガンマ線を用いた欠陥分布イメージングに関する研究 (2013)
  • Author(s): 平義隆、黒田隆之助、田中真人、大島永康、ブライアンオローク、豊川弘之、鈴木良一、渡辺賢一、柳田健之、八木秀喜、柳谷高公
  • Organizer: 第50回アイソトープ・放射線研究発表会
  • Place of Presentation: 東京大学
• [Remarks] 平 義隆 Yoshitaka Taira
  • URL: https://staff.aist.go.jp/yoshitaka-taira/index.html