Recombination luminescence in Li₂B₄O₇ doped with manganese and copper

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• 作者：V. Nagirnyi ; E. Aleksanyan ; G. Corradi ; M. Danilkin ; E. Feldbach ; M. Kerikm?e ; A. Kotlov ; A. Lust ; K. Polg¨¢r ; A. Ratas ; I. Romet ; V. Seeman
• 关键词：Lithium tetraborate ; Electron paramagnetic resonance ; Thermoluminescence ; Manganese ; Hole trapping
• 刊名：Radiation Measurements
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：56
• 期：Complete
• 页码：192-195
• 全文大小：445 K

文摘

Non-irradiated and irradiated ceramics of Li₂B₄O₇:Mn, Li₂B₄O₇:Mn,Be, and Li₂B₄O₇:Mn,Cu were studied using electron paramagnetic resonance and luminescence spectroscopy. The emission of Mn²⁺ centres is observed in the thermoluminescence spectra of the low-temperature and dosimetric high-temperature glow peaks in irradiated samples. Arguments are given in favour of hole mobility being responsible for the dosimetric thermoluminescence peak at 490?K in Li₂B₄O₇:Mn. The co-doping of Li₂B₄O₇:Mn with Cu⁺ is shown to increase the sensitivity of the material to ionizing radiation.