<span style="font-size:14.0pt;line-height: 115%;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; color:black;mso-ansi-language:EN-IN;mso-fareast-language:EN-IN;mso-bidi-language: HI" lang="EN-IN">Influence of certain metal ions on thermoluminescence of A₂O-CaF₂-B₂O₃ glasses</span>

Abstract

282-288<span style="font-size:14.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">Thermoluminescence study on X-ray irradiated A2O - CaF2 - B2O3 (where A=Li, Na and K) glasses has been carried out in the temperature range 303-600 K. All these glasses exhibit a single TL glow peak between 480-500 K; the study is further extended after these glasses are doped with different conventional activating or killing ions (viz., Sn2+, Ag+, Ce3+, Bi3+ and Cu2+) in small concentration (0.2%). All these ions are observed to inhibit the TL light output in these glasses. The trap depth parameters with the observed TL glow curves have been evaluated using Chen's formulae. The probable mechanism responsible for quenching of thermoluminescence emission by dopant ions in these glasses has been suggested.</span