期刊
出版社
ELSEVIER
DOI: 10.1016/j.nimb.2020.01.002
关键词
Alumina ceramic; Lanthanum impurity; Thermoluminescence; Pulsed cathodoluminescence; High-dose irradiation; Sensitivity to ionizing irradiation
类别
资金
- Russian Science Foundation (RSF) [18-72-10082]
- Russian Science Foundation [18-72-10082] Funding Source: Russian Science Foundation
The synthesis of La-doped alumina ceramics results in a formation of new pulsed cathodoluminescence bands and thermoluminescence peaks which associated with phases of lanthanum aluminate (LaAlO3) and lanthanum aluminium oxide (LaAl11O18). Annealing at high temperatures (up to 1600 degrees C) with maximum lanthanum concentration allows to create ceramics with high intensity of 510 pulsed cathodoluminescence band and 370 K thermoluminescence peak. The high intensity of new peaks thermoluminescence demonstrates the material sensitivity to ionizing radiation and the possibility of its use as ionizing radiation detectors in the case of expanding the sublinear dose recording range.
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