Optical properties of Sc-doped Al2O3 translucent ceramics for radiation measurements
Optical properties of Sc-doped Al2O3 translucent ceramics for radiation measurements
复制标题
用于辐射测量的 Sc 掺杂 Al2O3 半透明陶瓷的光学特性
DOI：
10.7567/jjap.57.02cb10
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发表时间：
2018
影响因子：
1.5
通讯作者：
T. Yanagida
中科院分区：
文献类型：
--
作者：
N. Z. N. Azman;Takumi Kato;G. Okada;N. Kawaguchi;T. Yanagida
采用放电等离子烧结(SPS)技术制备了一系列掺入不同浓度Sc的氧化铝(Al_2O_3)陶瓷，并对其发光性能进行了表征。在280 nm激发下和X射线照射下，观察到了340和440 nm附近的两个发射带。分别归属于F~+中心和F~-中心的发射带显示了微秒量级的寿命。随着掺杂浓度的增加，寿命增加，特别是对闪烁的寿命增加。X射线辐照后的热激发光(TSL)发光峰数随掺杂浓度的增加而有效减少。当掺入2.0%的Sc时，发光曲线只由一个单峰组成，并且在辐照后1000分钟有一个稳定的存储。此外，热释光对入射X射线剂量在0.5mGy0.5-10000 mGy时有单调的响应。
A series of alumina (Al2O3) ceramics doped with different concentrations of scandium (Sc) were synthesized by using spark plasma sintering (SPS) for characterizing luminescence properties. Two emission bands around 340 and 440 nm were observed under excitation of 280 nm as well as during X-ray irradiations. The emission bands, which were ascribed to F+- and F-centers, respectively, showed lifetimes on the order of microsecond. The lifetime, especially for scintillation, increases with increasing dopant concentration. The number of glow peaks in thermally stimulated luminescence (TSL) after X-ray irradiation effectively decreases with increasing doping concentration. When doped with 2.0% Sc, the glow curve consists of only a single peak, and a stable storage was experimentally confirmed up to 1000 min after the irradiation. Furthermore, the TSL monotonically responds to the incident X-ray dose in the range of 0.5–10000 mGy.
影响因子：
1.1
作者：
Okada, Go;Kasap, Safa;Yanagida, Takayuki
通讯作者：
Yanagida, Takayuki
影响因子：
2.3
作者：
T. Yanagida;Y. Fujimoto;A. Yoshikawa;Y. Yokota;K. Kamada;J. Pejchal;Varely Chani;N. Kawaguchi;K. Fukuda;K. Uchiyama;Kuniyoshi Mori;Ken Kitano;M. Nikl
通讯作者：
T. Yanagida;Y. Fujimoto;A. Yoshikawa;Y. Yokota;K. Kamada;J. Pejchal;Varely Chani;N. Kawaguchi;K. Fukuda;K. Uchiyama;Kuniyoshi Mori;Ken Kitano;M. Nikl