Non-doped Na2CO3 Ceramics as a New Radio-photoluminescence (RPL) Material

被引：22
|
作者：
Nakamura, Fumiya [1 ]
Kato, Takumi [1 ]
Nakauchi, Daisuke [1 ]
Okada, Go [1 ]
Kawano, Naoki [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol NAIST, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan
来源：
CHEMISTRY LETTERS | 2017年 / 46卷 / 09期
关键词：
Radio-photoluminescence (RPL); Na2CO3; ceramics; RPL dosimeter; GLASS; LIF;
D O I：
10.1246/cl.170580
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this letter, we report a new radio-photoluminescence (RPL) material. RPL is a phenomenon that new luminescent centers are generated by ionizing radiations. Sintered Na2CO3 ceramics in a vacuum showed PL band peaking around 430 nm under 340 +/- 40 nm excitation in which the intensity increases by X-ray irradiation. This evolution indicates a generation of a luminescent center by irradiation, a clear evidence of RPL. The majority of existing RPL materials are typically doped with luminescent ions; however, the present material was not intentionally doped. The RPL signal was observed as low as 0.1 mGy, which is an equivalent sensitivity of a commercial RPL dosimeter. For these reasons, the Na2CO3 ceramic is a promising candidate for RPL dosimeters.
引用
收藏
页码：1383 / 1385
页数：3
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