Development and material design of optically-stimulable luminescent glass materials based on the vacuum-refered binding energy of rare-earth ions

• Project/Area Number: 17K14911
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: Kanazawa Institute of Technology (2018-2019); Nara Institute of Science and Technology (2017)
• Principal Investigator: Okada Go 金沢工業大学, バイオ・化学部, 講師 (90757840)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 輝尽蛍光 / ボレートガラス / 希土類イオン / ガラス / OSL / 真空束縛準位 / 希土類

Outline of Final Research Achievements

In this research, rare earth doped glass materials were investigated as novel OSL materials. Glass materials have great advantage for its optical transparency and homogeneity nature as a host material. Particularly, OSL properties of borate glasses and effects of doping ions were intensively studied. Among the combinations studied, we concluded that co-doping with Ce3+ and Sm3+ shows one of the most notable OSL properties. In addition, we confirmed enhanced spatial resolution in a transparent material than non-transparent one. Furthermore, the depth of the OSL active trapping level was found to be approximately 1.45 eV.

Academic Significance and Societal Importance of the Research Achievements

放射線計測分野において希土類は一般的に発光中心として用いられ、OSLの電荷捕獲として用いられる例は稀であり、希土類の基底準位とホストバンドのエネルギー差を考慮にいれた材料設計は学術的意義が高い。また、透明なガラス材料を母体材料として用いる事により、光の散乱が抑えられ、放射線イメージングにおける空間分解能が向上される。放射線イメージングは医療画像診断技術や非破壊検査などに応用される技術であり、十分な社会的意義が持たれる。

Research Products

• [Int'l Joint Research] サスカチュワン大学/カナディアンライトソース(カナダ)
• [Int'l Joint Research] ビクトリア大学ウェリントン校(ニュージーランド)
• [Int'l Joint Research] サスカチュワン大学(カナダ)
• [Int'l Joint Research] ビクトリア大学(ニュージーランド)
• [Int'l Joint Research] サスカチュワン大学(カナダ)
• [Journal Article] "Thermoluminescence properties of Dy3+-doped CaO-Al2O3-B2O3 glasses for neutron detection" (2020)
  • Author(s): Ichiro Kawamura, Hiroki Kawamoto, Yutaka Fujimoto, Masanori Koshimizu, Go Okada, Yusuke Koba, Ryo Ogawara, Mitsuru Suda, Takayuki Yanagida, Keisuke Asai,
  • Journal Title: Nucl. Instrum. Methods Phys. Res. B Volume: 468 Pages: 18-18
  • DOI: 10.1016/j.nimb.2020.02.015
  • Peer Reviewed
• [Journal Article] Radio-photoluminescence properties of samarium-doped alkaline earth sulfates (2020)
  • Author(s): Okada Go、Hirasawa Kazuki、Kusano Eiji、Yanagida Takayuki、Nanto Hidehito
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume: 466 Pages: 56-60
  • DOI: 10.1016/j.nimb.2020.01.020
  • Peer Reviewed
• [Journal Article] Neutron-induced thermoluminescence properties of Tb³⁺-doped CaO–Al₂O₃–B₂O₃ glasses (2019)
  • Author(s): KAWAMURA Ichiro、KAWAMOTO Hiroki、FUJIMOTO Yutaka、KOSHIMIZU Masanori、OKADA Go、KOBA Yusuke、OGAWARA Ryo、YANAGIDA Takayuki、ASAI Keisuke
  • Journal Title: Journal of the Ceramic Society of Japan Volume: 127 Issue: 10 Pages: 663-668
  • DOI: 10.2109/jcersj2.19071
  • NAID: 130007722527
  • ISSN: 1348-6535, 1882-0743
  • Year and Date: 2019-10-01
  • Peer Reviewed / Open Access
• [Journal Article] Temperature-dependent luminescence of Ce-doped SrO-B2O3 glasses (2019)
  • Author(s): Masai Hirokazu、Okada Go、Ina Toshiaki、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Journal of Luminescence Volume: 207 Pages: 316-320
  • DOI: 10.1016/j.jlumin.2018.11.014
  • Peer Reviewed
• [Journal Article] Radiation induced luminescence properties of Ce-doped Y2O3-Al2O3-SiO2 glass prepared using floating zone furnace (2019)
  • Author(s): Isokawa Yuya、Nakauchi Daisuke、Okada Go、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Journal of Alloys and Compounds Volume: 782 Pages: 859-864
  • DOI: 10.1016/j.jallcom.2018.12.245
  • Peer Reviewed
• [Journal Article] Relationship between defect formation by X-ray irradiation and thermally stimulated luminescence of binary zinc phosphate glasses (2019)
  • Author(s): Masai Hirokazu、Okada Go、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Optical Materials Express Volume: 9 Issue: 5 Pages: 2037-2037
  • DOI: 10.1364/ome.9.002037
  • Peer Reviewed / Open Access
• [Journal Article] X-ray induced luminescence properties of Ce-doped BaF2-Al2O3-B2O3 glasses (2019)
  • Author(s): Samizo Hayata、Shinozaki Kenji、Kato Takumi、Okada Go、Kawaguchi Noriaki、Masai Hirokazu、Yanagida Takayuki
  • Journal Title: Optical Materials Volume: 90 Pages: 64-69
  • DOI: 10.1016/j.optmat.2019.01.035
  • Peer Reviewed
• [Journal Article] Storage-luminescence centres of Ce-doped MgO-CaO-SiO2 ceramics (2019)
  • Author(s): Okada Go、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Optical Materials Volume: 87 Pages: 84-89
  • DOI: 10.1016/j.optmat.2018.05.046
  • Peer Reviewed
• [Journal Article] Radio-photoluminescence observed in Eu-doped BABF glass-ceramics (2018)
  • Author(s): Okada Go、Shinozaki Kenji、Shiratori Daiki、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Ceramics International Volume: 45 Issue: 7 Pages: 9376-9380
  • DOI: 10.1016/j.ceramint.2018.08.027
  • Peer Reviewed
• [Journal Article] Tb 3+ -doped BaF 2 -Al 2 O 3 -B 2 O 3 glass and glass-ceramic for radiation measurements (2018)
  • Author(s): Okada Go、Shinozaki Kenji、Komatsu Takayuki、Kawano Naoki、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Journal of Non-Crystalline Solids Volume: - Pages: 101-105
  • DOI: 10.1016/j.jnoncrysol.2018.02.013
  • Peer Reviewed
• [Journal Article] X-ray-induced Scintillation Governed by Energy Transfer Process in Glasses (2018)
  • Author(s): Masai Hirokazu、Okada Go、Torimoto Aya、Usui Takaaki、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Scientific Reports Volume: 8 Issue: 1 Pages: 623-623
  • DOI: 10.1038/s41598-017-18954-y
  • NAID: 120006517786
  • Peer Reviewed / Open Access
• [Journal Article] Optical and radiation-induced luminescence properties of Ce-doped magnesium aluminoborate glasses (2017)
  • Author(s): Nakauchi Daisuke、Okada Go、Fujimoto Yutaka、Kawano Naoki、Kawaguchi Noriaki、Yanagida Takayuki
  • Journal Title: Optical Materials Volume: 72 Pages: 190-194
  • DOI: 10.1016/j.optmat.2017.05.063
  • Peer Reviewed
• [Journal Article] Radiophotoluminescence in Sm-doped BaF2-Al2O3-B2O3 glass-ceramics (2017)
  • Author(s): Go Okada, Kenji Shinozaki, Takayuki Komatsu, Safa Kasap, Takayuki
  • Journal Title: RADIATION MEASUREMENTS Volume: inpress Pages: 73-78
  • DOI: 10.1016/j.radmeas.2016.12.006
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Ce3+添加B2O3-Al2O3-NaOガラスのOSL特性 (2020)
  • Author(s): 岡田 豪、平澤 一樹、柳田 健之、Kasap Safa、南戸 秀仁
  • Organizer: 第67回 応用物理学会春季学術講演会
• [Presentation] RPL observed in LiCaAlF6:Sm (2019)
  • Author(s): Go Okada, Noriaki Kawaguchi, Hidehito Nanto, Safa Kasap, Takayuki Yanagida
  • Organizer: The 19th International Conference on Solid State Dosimetry (SSD19)
  • Int'l Joint Research
• [Presentation] Radiation-induced generation of luminescence centres for dosimetric applications (2019)
  • Author(s): Go Okada, Takayuki Yanagida, Safa Kasap
  • Organizer: The 20th International Conference on Radiation Effects in Insulators
  • Int'l Joint Research / Invited
• [Presentation] RPL properties of europium-doped BABF glass-ceramics and the thermal response (2019)
  • Author(s): Go Okada, Kenji Shinozaki, Noriaki Kawaguchi, Takayuki Yanagida
  • Organizer: The 20th International Conference on Radiation Effects in Insulators
  • Int'l Joint Research
• [Presentation] 新規RPL材料の開発と応用 (2019)
  • Author(s): 岡田豪, 柳田健之, 南戸秀仁, Safa Kasap
  • Organizer: 第80回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Smの価数変化を用いた放射線計測応用 (2019)
  • Author(s): 岡田豪、上田純平、田部勢津久、柳田健之、Safa Kasap
  • Organizer: The 29th Meeting on Glasses for Photonics
  • Invited
• [Presentation] Radio-photoluminescence dosimetry using Sm-doped materials (2018)
  • Author(s): G. Okada, T. Yanagida, H. Nanto, S. Kasap
  • Organizer: The 14th International Workshop of Ionizing Radiation Monitoring
  • Int'l Joint Research / Invited
• [Presentation] Sm-doped Glass and Glass-Ceramic Phosphors for X-ray Micro-Imaging (2018)
  • Author(s): G. Okada , F. Chicilo , J. Ueda , S. Tanabe , A. Edgar, G. Belev, T. Wysokinski, D. Chapman, T. Yanagida, S. Kasap
  • Organizer: ISNOG 2018
  • Int'l Joint Research / Invited
• [Presentation] Rare-earth-doped Glass and Glass-ceramic Phosphors for Radiation Imaging and Dosimetry (2018)
  • Author(s): G. Okada , F. Chicilo , J. Ueda , S. Tanabe , A. Edgar, G. Belev, T. Wysokinski, D. Chapman, T. Yanagida, S. Kasap
  • Organizer: CIMTEC 2018
  • Int'l Joint Research / Invited
• [Presentation] Samarium-based Radio-photoluminescence Materials and Applications for Microbeam Radiation Therapy (2018)
  • Author(s): G. Okada, J. Ueda, S. Tanabe, F. Chicilo, G. Belev, C. Koughia, T. Wysokinski, D. Chapman, T. Yanagida, A. Edgar, S. Kasap
  • Organizer: ICOOPMA 2018
  • Int'l Joint Research / Invited
• [Presentation] Eu添加BaF2-Al2O3-B2O3結晶化ガラスのRPL特性 (2018)
  • Author(s): 岡田豪, 篠崎健二, 河口範明, 柳田健之
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] Eu添加BaF2-Al2O3-B2O3結晶化ガラスのRPL特性 (2018)
  • Author(s): 岡田豪，篠崎健二，河口範明，柳田健之
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] Valence reduction of Sm3+ in glasses crystals induced by x-ray irradiation (2017)
  • Author(s): Go Okada, N. Kawano, N. Kawaguchi, S. Kasap, T. Yanagida
  • Organizer: the 7th International Workshop on Photoluminescence in Rare Earths: Photonic Materials and Devices (PRE'17)
  • Int'l Joint Research
• [Presentation] Behavior of electrons and holes in Ag-doped phosphate glass during radiophotoluminescence center formation (2017)
  • Author(s): H. Kawamoto, Y. Fujimoto, M. Koshimizu, G. Okada, T. Yanagida, K. Asai
  • Organizer: the 13th International Workshop on Ionizing Radiation Monitoring
  • Int'l Joint Research
• [Presentation] Radio-photoluminescence (RPL) in Sm:BaAlBO3F2 Embedded in Glass Matrix (2017)
  • Author(s): G. Okada, K. Shinozaki, T. Komatsu, S. Kasap, N. Kawano, N. Kawaguchi, T. Yanagida
  • Organizer: the 2017 IEEE Nuclear Science Symposium & Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Radiation-induced intervalence conversion of Sm in 50BaF5-25Al2O3-25B2O3 glass-ceramics for high-resolution X-ray imaging (2017)
  • Author(s): G. Okada, K. Shinozaki, T. Komatsu, S. Kasap, T. Yanagida
  • Organizer: 12th International Symposium on Crystallization in Glasses and Liquids
  • Int'l Joint Research
• [Presentation] 放射線マイクロイメージングを目的としたSm添加BaF2-Al2O3-B2O3 結晶化ガラス (2017)
  • Author(s): 岡田豪, 篠崎健二, 小松高行, Safa Kasap, 河野直樹, 河口範明, 柳田健之
  • Organizer: 日本セラミックス協会 第30回秋季シンポジウム
• [Presentation] X線照射によるBaAlBO3F2におけるEu3+の還元反応 (2017)
  • Author(s): 岡田豪, 篠崎健二, 河口範明, 柳田健之
  • Organizer: 第56回日本セラミックス協会2018年年会
• [Remarks] 金沢工業大学 岡田豪研究室
  • URL: http://gookadalab.com/
• [Remarks] 奈良先端科学技術大学院大学 助教 岡田豪
  • URL: http://mswebs.naist.jp/LABs/yanagida/Okada/index-jp.html
• [Remarks] 金沢工業大学 岡田豪研究室
  • URL: https://kitnet.jp/laboratories/labo0216/index.html
• [Patent(Industrial Property Rights)] ラジオフォトルミネッセンス用蛍光体、その製造方法、蛍光線量計、放射線量測定方法および装置 (2019)
  • Inventor(s): 岡田豪、南戸秀仁、小口靖弘
  • Industrial Property Rights Holder: 金沢工業大学、千代田テクノル
  • Industrial Property Rights Type: 特許
  • Filing Date: 2019
  • Overseas