Development of Alkaline Earth Salts having Highly Enhanced Radiophotoluminescence Properties
Project/Area Number |
20K15207
|
Research Category |
Grant-in-Aid for Early-Career Scientists
|
Allocation Type | Multi-year Fund |
Review Section |
Basic Section 31010:Nuclear engineering-related
|
Research Institution | Kanazawa Institute of Technology |
Principal Investigator |
OKADA GO 金沢工業大学, バイオ・化学部, 講師 (90757840)
|
Project Period (FY) |
2020-04-01 – 2022-03-31
|
Project Status |
Completed (Fiscal Year 2021)
|
Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
Keywords | ラジオフォトルミネッセンス / RPL / CaSO4 / アルカリ土類硫酸塩 |
Outline of Research at the Start |
本研究は材料合成、基礎化学特性評価、基礎物理特性評価および放射線応答特性評価の研究区分から構成する。材料合成で作製した材料は、組成や構造の観点から化学的に目的としたものであるかを基礎化学特性評価で検証する。基礎物理特性評価では光学特性を中心に調査し、放射線応答特性評価ではRPL特性のみならずTSLやOSL等の特性についても調査する。これら諸特性評価結果は材料合成にフィードバックされ、PDCA(Plan Do Check Action)サイクルにより材料を最適化する。また、材料の最適化に至るまでの変数パラメータを系統的に考察する事により、RPL現象の起源の理解に繋げ、材料設計指針を構築する。
|
Outline of Final Research Achievements |
Radiophotoluminescence materials with a sulphate matrix have been developed. Among these, the material based on CaSO4 exhibited remarkable properties and good sensitivity to radiation dose. Furthermore, unlike conventional materials, the response values were stable immediately after irradiation and could be erased by applying heat. Furthermore, it was found that the radiophotoluminescence was reproducible after erasure by heat treatment in the same way as before erasure, and it was demonstrated that the material could be reused repeatedly.
|
Academic Significance and Societal Importance of the Research Achievements |
ラジオフォトルミネッセンスは現在個人被ばく線量計における放射線の検出ならびに線量の記録素子として用いられている。従来のラジオフォトルミネッセンス材料の種類は極めて少なく、この事が現象理解や材料設計指針の構築、新規応用展開の妨げとなっている。本研究では新たなラジオフォトルミネッセンス材料の開発に成功した。なかでも、放射線照射直後から応答値が安定である特性から、ラジオフォトルミネッセンス材料を用いたリアルタイム線量計測への応用展開が期待される。
|
Report
(3 results)
Research Products
(51 results)
-
-
-
-
-
[Journal Article] Radiophotoluminescence Imaging Reader for Passive Dosimetry2022
Author(s)
Hidehito Nanto, Go Okada, Kazuki Hirasawa, Yasuhiro Koguchi, Wakako Shinozaki, Satoshi Ueno, Yuka Yanagida, Francesco d'Errico, and Takayoshi Yamamoto
-
Journal Title
Sensors and Materials
Volume: 34
Issue: 2
Pages: 757
DOI
ISSN
0914-4935, 2435-0869
Year and Date
2022-02-21
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
[Journal Article] RPL Properties of Samarium-doped CaSO42022
Author(s)
Go Okada, Wakako Shinozaki, Satoshi Ueno, Yasuhiro Koguchi, Kazuki Hirasawa, Francesco d'Errico, Takayuki Yanagida, Safa Kasap, Hidehito Nanto
-
Journal Title
Japanese Journal of Applied Physics
Volume: 61
Issue: SB
Pages: SB1035-SB1035
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] RPL properties of samarium-doped CaSO42021
Author(s)
Go Okada, Masanori Koshimizu, Yasuhiro Koguchi, Kazuki Hirasawa, Eiji Kusano, Francesco d'Errico, Takayuki Yanagida, Safa Kasap
Organizer
Pacifichem 2021 - The International Chemical Congress of Pacific Basin Societies 2021
Related Report
Int'l Joint Research
-
-
[Presentation] ZnO scintillators for neutron detections2021
Author(s)
Hidehito Nanto, Yoshinori Takei, Kazuki Hirasawa, Yuka Miyamoto, Tatsuya Nakamura, Takayuki Yanagida
Organizer
Pacifichem 2021 - The International Chemical Congress of Pacific Basin Societies 2021
Related Report
Int'l Joint Research
-
[Presentation] OSL properties of Sn-doped SrO-B2O3 glasses2021
Author(s)
Go Okada, Hirokazu Masai, Takayuki Yanagida, Yutaka Fujimoto, Yuka Miyamoto, Yoshinori Takei, Kazuki Hirasawa, Takayoshi Yamamoto, Hidehito Nanto
Organizer
Pacifichem 2021 - The International Chemical Congress of Pacific Basin Societies 2021
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-