Radiophotoluminescence properties of Bi-doped NaCaBO3

被引：2

作者：

Nakamura, Tomoya ^{[1
]}

Okada, Go ^{[1
,2
]}

Nanto, Hidehito ^{[2
,3
]}

机构：

[1] Kanazawa Inst Technol KIT, Dept Appl Chem, Nonoichi, Ishikawa 9218501, Japan

[2] Kanazawa Inst Technol KIT, Cocreat Res Ctr Ind Sci & Technol CIST, Haku San, Ishikawa 9240838, Japan

[3] Chiyoda Technol Corp, Oarai Res Ctr, Oarai, Ibaraki 3111313, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 979卷

关键词：

Radiophotoluminescence; RPL; Bi; NaCaBO3; Radiation measurement; RED PHOSPHOR; PHOTOLUMINESCENCE; DOSIMETRY; IONS;

D O I：

10.1016/j.jallcom.2024.173498

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bi-doped NaCaBO3 exhibits radiophotoluminescence (RPL) properties, where the Bi2+ centre is formed through X-ray irradiation. As a result of RPL, a broad emission band appears around 800 nm in the photoluminescence (PL) spectrum, attributed to X-ray irradiation. The intensity of the PL signal is proportional to the irradiation dose, making it useful for measuring accumulated radiation dose. The sensitivity depends on the doping concentration of Bi, and the optimal concentration to maximize sensitivity is approximately 0.005%. With a laboratory-constructed reader system, the optimal sample enables measurement of X-ray dose as low as 25 mGy. Following irradiation, the Bi2+ signal slightly increases by about 13%, but it is significantly reduced to around 7% of the initial value after heat treatment at 500 degrees C for 100 s. The formation and annihilation of the Bi2+ centre can be reproduced multiple times. Therefore, RPL of Bi-doped NaCaBO3 is attractive for radiation dosimetry applications.

引用

页数：6

共 32 条

[1] New Al2O3:C,Mg crystals for radiophotoluminescent dosimetry and optical imaging [J].

Akselrod, Mark S. ;

Akselrod, Anna E. .

RADIATION PROTECTION DOSIMETRY, 2006, 119 (1-4) :218-221

[2] Eu-doped Ca2SiO4 as a New Radio-photoluminescence Phosphor [J].

Asada, Shota ;

Okada, Go ;

Kato, Takumi ;

Nakamura, Fumiya ;

Kawano, Naoki ;

Kawaguchi, Noriaki ;

Yanagida, Takayuki .

CHEMISTRY LETTERS, 2018, 47 (01) :59-61

[3] Valency conversion of samarium ions under high dose synchrotron generated X-ray radiation [J].

Belev, George ;

Okada, Go ;

Tonchev, Dancho ;

Koughia, Cyril ;

Varoy, Chris ;

Edgar, Andy ;

Wysokinski, Tomasz ;

Chapman, Dean ;

Kasap, Safa .

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 9, 2011, 8 (09) :2822-2825

[4] Photoluminescence of Bi2+-doped BaSO4 as a red phosphor for white LEDs [J].

Cao, Renping ;

Peng, Mingying ;

Qiu, Jianrong .

OPTICS EXPRESS, 2012, 20 (23) :A977-A983

[5] High-resolution X-ray imaging with samarium-doped fluoroaluminate and fluorophosphate glass [J].

Edgar, A. ;

Varoy, C. R. ;

Koughia, C. ;

Okada, G. ;

Belev, G. ;

Kasap, S. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2013, 377 :124-128

[6] Radiation induced change in the optical properties of NaCl:Yb crystal [J].

Fujimoto, Yutaka ;

Okada, Go ;

Sekine, Dai ;

Yanagida, Takayuki ;

Koshimizu, Masanori ;

Kawamoto, Hiroki ;

Asai, Keisuke .

RADIATION MEASUREMENTS, 2020, 133

[7] Radio-photoluminescence properties of Eu-doped SrAl2O4 ceramics and thermally assisted charge transfer process [J].

Kohara, Yuto ;

Okada, Go ;

Tsuyumoto, Isao ;

Nanto, Hidehito .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2023, 34 (06)

[8] Radiation-induced reduction of Eu3+ doped in [J].

Kohara, Yuto ;

Okada, Go ;

Tsuyumoto, Isao ;

Kusano, Eiji ;

Nanto, Hidehito .

MATERIALS LETTERS, 2021, 303

[9] Development of accurate two-dimensional dose-imaging detectors using atomic-scale color centers in Ag-activated phosphate glass and LiF thin films [J].

Kurobori, Toshio ;

Matoba, Akinari .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53 (02)

[10] LIF DOSIMETRY BASED ON RADIOPHOTOLUMINESCENCE (RFL) [J].

LEVITA, M ;

SCHLESINGER, T ;

FRIEDLAND, SS .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1976, 23 (01) :667-674

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