Thermoluminescence of terbium-doped double fluorides

✍ Scribed by J. Azorín-Nieto; N.M. Khaidukov; A. Sánchez-Rodríguez; J.C. Azorín-Vega

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 431 KB
• Volume: 263
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2007.04.082

✦ Synopsis

This paper presents the thermoluminescence (TL) characteristics of the double fluorides: K 2 YF 5 , K 2 GdF 5 and K 2 LuF 5 doped with Tb 3+ , which were studied in the temperature range from 30 to 400 °C. Materials which presented better response to the irradiation with beta particles and with ultraviolet radiation were: K 2 YF 5 :Tb (1 at.% Tb 3+ ) and K 2 LuF 5 :Tb (1 at.% Tb 3+ ); meanwhile, K 2 YF 5 :Tb at high concentrations (10 and 20 at.% Tb 3+ ) as well as K 2 LuF 5 :Tb (1 at.% Tb 3+ ) and K 2 LuF 5 :Tb (1 at.% Tb 3+ ) presented good response to gamma radiation. The intensity of the thermoluminescent response induced in these materials by ionizing radiation has determined that their dosimetric characteristics should be studied further as this may allow the development of potentially useful TL materials for radiation dosimetry.