Abstract
Thermoluminescence (TL) characteristics of γ−ray irradiated calcium fluoro borophosphate glasses doped with different concentrations of CuO (0.2–1mol%) have been studied in the temperature range 30–300°C. The γ−ray dose is varied from 0.25kGy to 10kGy. The glow curves of these glasses have exhibited a dosimetric peak at about 200°C and a high temperature peak at about 300°C. The glasses doped with 0.2mol% of CuO have exhibited maximum TL light output. The increase of dopant concentration beyond 0.2mol% caused the inhibition of TL emission drastically with shifting of peak positions towards higher temperatures. The probable mechanism responsible for quenching of TL emission in these glasses has been explained based on the variations in the valence state of copper ions with the aid of optical absorption spectra. The dose response of 0.2mol% CuO doped borophosphate glass samples showed linear behavior within the dose range of 0.25 to 4kGy. Samples containing higher concentrations of CuO (>0.2mol%) were found to be not suitable for radiation dosimetry within 10kGy dose.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
