Thermoluminescence of OH −-doped rubidium halides

• Published in: The Journal of physics and chemistry of solids 1999-07, Vol.60 (7), p.957-963
• Main Authors: Furetta, C., Laudadio, M.T., Sanipoli, C., Scacco, A., Gomez-Ros, J.M., Correcher, V.
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other luminescence and radiative recombination; Physics; Thermoluminescence
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/S0022-3697(99)00008-6

Thermoluminescence (TL) of OH −-doped RbCl and RbBr was investigated from a dosimetric point of view. RbCl : OH − exhibits a simple glow curve with only one peak at about 100°C which is drastically quenched by increasing the dopant concentration, a linear response to doses up to 20 Gy and moderate fading. RbBr : OH − shows a more complex glow curve with peaks at about 70°C, 175°C and 230°C. All components, with the exception of the high temperature peak which is detected only at relatively high doses, are strongly modified by thermal and optical fading. No linearity is found in the TL response to dose, which exhibits saturation. Deconvolution of the glow curve reveals the occurrence of six TL peaks, whose dose dependence was investigated. In general, OH −-doped rubidium halides exhibit no satisfactory features for radiation dosimetry.