Abstract
AbstractOptical absorption, photoluminescence, and thermoluminescence emission studies are made on CsCl:Tb3+ crystals at room temperature. The presence of impurities is confirmed by the characteristic OA band at 360 nm. Photoluminescence of these crystals shows characteristic Tb3+ emissions due to transitions from the 5D3 and 5D4 levels to various levels of the 7F septet. The glow curve studies clearly show the participation of terbium ions in the thermoluminescence process. The new 415 K glow peak, not observed in pure CsCl, is ascribed to the terbium ion in the vicinity of F centers. All the TL glow peaks give the characteristic emissions of Tb3+ in addition to the emission due to the recombination of the F electron with V‐type centers.
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