ガラス線量計用銀活性リン酸塩ガラスのラジオフォトルミネッセンスとフォトルミネッセンス

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2013/10/01

タイトル(英語): Radiophotoluminescence and Photoluminescence in Ag+-activated Phosphate Glass Used as Glass Dosimeter

著者名: 南戸　秀仁（金沢工業大学 高度材料科学研究開発センター），宮本　由香（（株）千代田テクノル 大洗研究所），竹井　義法（金沢工業大学 高度材料科学研究開発センター），平澤　一樹（金沢工業大学 高度材料科学研究開発センター），遠藤　和弘（金沢工業大学 高度材料科学研究開発センター）

著者名(英語): Hidehito Nanto (Adv. Mater. Sci. R&D Center, Kanazawa Inst. of Tech.), Yuka Miyamoto (Oarai Res. Center, Chiyoda Technol Co. Ltd.), Yoshinori Takei (Adv. Mater. Sci. R&D Center, Kanazawa Inst. of Tech.), Kazuki Hirasawa (Adv. Mater. Sci. R&D Center, Kanazawa Inst. of Tech.), Kazuhiro Endo (Adv. Mater. Sci. R&D Center, Kanazawa Inst. of Tech.)

キーワード: ガラス線量計，ラジオフォトルミネッセンス，フォトルミネッセンス，銀活性リン酸塩ガラス　　glass dosimeter，radiophotoluminescence，photoluminescence，Ag+-activated phosphate glass

要約(英語): The dependence of radiophotoluminescence (RPL) and photoluminescence (PL) properties on x-ray irradiation dose and heat-treatment after irradiation was investigated for Ag+-activated phosphate glass, which is practically used as glass dosimeter for individual monitoring of ionizing radiation. The RPL intensity was increased with increasing x-ray irradiation dose, while the PL intensity was oppositely decreased with x-ray dose. The glass exhibited the vice versa tendency between the PL and RPL changes for heat-treatment at 250℃ after x-ray irradiation, that is, the PL intensity was increased with annealing time, while RPL was decreased with annealing time. These results strongly support that the luminescence center of the PL is Ag+ and the centers of yellow RPL and blue RPL are Ag2+ and Ag0, respectively, which has been proposed in previous report. In addition, annealing temperature at 250℃ for 40 min made it possible to save much energy and time required for recovering the used glass dosimeter to initial condition before x-ray irradiation. It was also found from the dose dependence of the RPL intensity that the RPL intensity was saturated around higher dose region than about 15Gy, which means that there is no linearity between RPL intensity and radiation dose in high dose region.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.133 No.10 （2013） 特集：エネルギーの創出・活用に関わるセンシング

本誌掲載ページ: 307-311 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/133/10/133_307/_article/-char/ja/