X-Ray Luminescence of Crystallized Silver, Copper and Manganese-Doped Lithium Tetraborate

Abstract

The X-ray luminescence spectra of doped lithium tetraborate have been analyzed on the basis of accounting the set of spectral transitions for different atomic charge states. It has been shown that the X-ray luminescence peculiarities are to a great extent due to the transitions between the energy levels of dopant atoms and ions, as well as to the levels, which form the lithium tetraborate matrix.

Optical absorption and X-ray luminescence of glassy lithium tetraborate activated by terbium oxide

“…2a) is related to transitions to states of multiplet splitting of the ground energy terms of boron, oxygen, and lithium and their ions in the crystal field of the dis ordered Li 2 B 4 O 7 matrix [17][18][19]. Concerning the oxy gen emission, transitions between the terms 1 S 0 , 1 D 2 , and 3 P J related to the same electronic configuration 2s 2 2p 4 are of interest.…”

X-ray luminescence and spectroscopic characteristics of Er3+ ions in a glassy lithium tetraborate matrix

“…Therefore, the development of these materials for radiative monitoring is very important and urgent. Extensive studies of wide-gap insulator Li 2 B 4 O 7 in different (in particular, activated) phase states [1][2][3][4][5][6][7][8] have shown the absence of unified opinion on the nature of radiative centers even for the most widespread phosphor LTB, activated with copper and silver.…”

“…It is known [2,3,5,9,10] that the type of activator in a lithium tetraborate matrix affects significantly its luminescence characteristics and the potential of their practical application. The luminescence properties are related to the energy structure of the pseudoband gap of glassy Li 2 B 4 O 7 , which has some features in the case of wide-gap insulators [5,11,12].…”

“…The luminescence properties are related to the energy structure of the pseudoband gap of glassy Li 2 B 4 O 7 , which has some features in the case of wide-gap insulators [5,11,12]. From this point of view, the search for criteria for choosing the activator type for modifying LTB and using it as a detector of ionizing radiations of different types is of particular importance.…”

Synthesis and TL characterization of Li[sub 2]B[sub 4]O[sub 7] doped with copper and manganese

“…The introduction of a small quantity of dopant into the lithium tetraborate enables its sensitivity to ionizing radiation inÀuence to be increased substantially; the materials show some desirable features for TL in terms of linearity and storage and many of the earlier problems of fading, light sensitivity and poor humidity behavior have been avoided. The most promising from this point of view are the copper and manganese dopants, for which the best photoluminescence characteristic indices were achieved [3,4]. Therefore, single crystals of this material doped with copper (Cu) and doped with manganese (Mn) are promising for dosimetric applications and as radiation proof material for optical devices.…”