外文题目: Scintillation properties and X-ray irradiation hardness of Ce3+-doped Gd2O3-based scintillation glass
作者: Liu, Liwan; Shao, Chongyun; Zhang, Yu; Liao, Xili; Yang, Qiuhong; Hu, Lili; Chen, Danping
刊名: J. Lumines.
年: 2016 卷: 176 页： 1--5
英文关键词:
Scintillation glass; Gd2O3 based; Charge transfer quenching; Irradiation hardness
HIGH GD2O3 CONCENTRATION; OPTICAL-PROPERTIES; OXIDE GLASSES; LUMINESCENCE; BASICITY; RADIOLUMINESCENCE; PHOSPHATE; YIELD
英文摘要:
Ce3+-doped Gd2O3-based scintillation glasses are prepared within an air or CO atmosphere. The effects of fluorine, lutetium, barium, and the melting atmosphere on the optical properties, scintillation properties and irradiation hardness are studied. Absorption spectra, luminescence spectra under UV and X-ray excitation, and the X-ray radiation-induced spectra are presented. The results show that the density can be increased by doping with fluorine, lutetium and barium. The luminescence intensity decreases after X-ray irradiation. Because of charge transfer quenching, fluorine and lutetium enhance the UV excited and X-ray excited luminescence intensity, but barium decreases. Moreover, fluorine and lutetium are advantageous to irradiation hardness while barium is not. In addition, a non-reducing atmosphere provides a higher irradiation hardness than a reducing atmosphere. Fluorine-doped glass is promising to enhance luminescence intensity, promote irradiation hardness, and increase the density. (C) 2016 Elsevier B.V. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.jlumin.2016.02.029


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