Ionizing radiation sensor utilizing radiophotoluminescence in Ag+-activated phosphate glass and its application to environmental radiation monitoring
Ionizing radiation sensor utilizing radiophotoluminescence in Ag+-activated phosphate glass and its application to environmental radiation monitoring
Optical properties such as optical absorption spectrum and radiophotoluminescence (RPL) emission and excitation spectra of Ag+-activated phosphate glass before and after X-ray irradiation were investigated in this study. It is found that the RPL emission spectrum consists of two emission band peaks at about 460 (blue luminescence) and 560 nm (orange luminescence). The excitation spectrum of RPL consists of two excitation bands at about 315 and 360 nm. It is also found that 560 nm RPL peak intensity gradually increases with time after exposure to X-rays, which strongly suggests that the 560 nm RPL peak is ascribed to Ag2+ ions. The 460 nm RPL peak is ascribed to Ag0 ions, because a blue luminescence is observed in femtosecond pulsed laser light-irradiated glass, in which Ag0 ions are produced by the photoreduction process of Ag+ ions in glass. The application of the RPL phenomenon in Ag+-activated phosphate glass to the environmental monitoring of ionizing natural radiation is also demonstrated.
radiophotoluminescence, glass dosemeter, Ag+-activated phosphate glass, photoreduction, femtosecond laser pulse, environmental radiation
235-245
Miyamoto, Yuka
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Kinoshita, Kazuya
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Kobayashi, Haruki
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Fujiwara, Akihiko
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Koyama, Shin
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Takei, Yoshinori
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Nanto, Hidehito
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Yamamoto, Takayoshi
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Kurobori, Toshio
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Yanagida, Takayuki
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Yoshikawa, Akira
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Sakakura, Masaaki
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Shimotsumas, Yasuhiko
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Miura, Kiyotaka
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Hirao, Kazuyuki
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2010
Miyamoto, Yuka
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Kinoshita, Kazuya
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Kobayashi, Haruki
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Fujiwara, Akihiko
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Koyama, Shin
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Takei, Yoshinori
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Nanto, Hidehito
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Yamamoto, Takayoshi
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Kurobori, Toshio
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Yanagida, Takayuki
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Yoshikawa, Akira
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Sakakura, Masaaki
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Shimotsumas, Yasuhiko
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Miura, Kiyotaka
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Hirao, Kazuyuki
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Miyamoto, Yuka, Kinoshita, Kazuya, Kobayashi, Haruki, Fujiwara, Akihiko, Koyama, Shin, Takei, Yoshinori, Nanto, Hidehito, Yamamoto, Takayoshi, Kurobori, Toshio, Yanagida, Takayuki, Yoshikawa, Akira, Sakakura, Masaaki, Shimotsumas, Yasuhiko, Miura, Kiyotaka and Hirao, Kazuyuki
(2010)
Ionizing radiation sensor utilizing radiophotoluminescence in Ag+-activated phosphate glass and its application to environmental radiation monitoring.
Sensors and Materials, 22 (5), .
Abstract
Optical properties such as optical absorption spectrum and radiophotoluminescence (RPL) emission and excitation spectra of Ag+-activated phosphate glass before and after X-ray irradiation were investigated in this study. It is found that the RPL emission spectrum consists of two emission band peaks at about 460 (blue luminescence) and 560 nm (orange luminescence). The excitation spectrum of RPL consists of two excitation bands at about 315 and 360 nm. It is also found that 560 nm RPL peak intensity gradually increases with time after exposure to X-rays, which strongly suggests that the 560 nm RPL peak is ascribed to Ag2+ ions. The 460 nm RPL peak is ascribed to Ag0 ions, because a blue luminescence is observed in femtosecond pulsed laser light-irradiated glass, in which Ag0 ions are produced by the photoreduction process of Ag+ ions in glass. The application of the RPL phenomenon in Ag+-activated phosphate glass to the environmental monitoring of ionizing natural radiation is also demonstrated.
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More information
Published date: 2010
Additional Information:
No Southampton authors at time of publication
Keywords:
radiophotoluminescence, glass dosemeter, Ag+-activated phosphate glass, photoreduction, femtosecond laser pulse, environmental radiation
Identifiers
Local EPrints ID: 431160
URI: http://eprints.soton.ac.uk/id/eprint/431160
ISSN: 0914-4935
PURE UUID: 0a287b67-1c65-4193-92f1-e10290787608
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Date deposited: 24 May 2019 16:30
Last modified: 07 Dec 2022 17:46
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Contributors
Author:
Yuka Miyamoto
Author:
Kazuya Kinoshita
Author:
Haruki Kobayashi
Author:
Akihiko Fujiwara
Author:
Shin Koyama
Author:
Yoshinori Takei
Author:
Hidehito Nanto
Author:
Takayoshi Yamamoto
Author:
Toshio Kurobori
Author:
Takayuki Yanagida
Author:
Akira Yoshikawa
Author:
Masaaki Sakakura
Author:
Yasuhiko Shimotsumas
Author:
Kiyotaka Miura
Author:
Kazuyuki Hirao
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