Abstract
AbstractThermoluminescence (TL) and optical absorption studies are made on RbBr:Ba2+. An absorption band due to Z1‐centres appears at 1.58 eV on F‐light bleaching subsequent to γ‐irradiation. A TL glow peak attributable to Z1‐centres is identified. TL emission under the main glow peak shows a broad emission at 2.65 eV with a shoulder at 1.95 eV. This 1.95 eV emission is attributed to VM2‐centres which give rise to an absorption band around 4.1 eV. A tentative energy band scheme is suggested explaining the various TL processes.
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