Thermoluminescence dosimetry properties and kinetic parameters of lithium potassium borate glass co-doped with titanium and magnesium oxides

Autor:	Mohammad Hasan Abu Mhareb, Mohd Iqbal Saripan, Muneer Aziz Saleh, D.A. Bradley, Suhairul Hashim, Yasser Saleh Mustafa Alajerami, Khalid Alzimami, Ahmad Termizi Ramli, A.B.A. Kadir, Sib Krishna Ghoshal
Rok vydání:	2014
Předmět:	Radiation Materials science Magnesium Potassium Analytical chemistry chemistry.chemical_element Borate glass Activation energy Thermoluminescence chemistry Lithium Boron Nuclear chemistry Titanium
Zdroj:	Applied Radiation and Isotopes. 91:126-130
ISSN:	0969-8043
Popis:	Lithium potassium borate (LKB) glasses co-doped with TiO2 and MgO were prepared using the melt quenching technique. The glasses were cut into transparent chips and exposed to gamma rays of (60)Co to study their thermoluminescence (TL) properties. The TL glow curve of the Ti-doped material featured a single prominent peak at 230 °C. Additional incorporation of MgO as a co-activator enhanced the TL intensity threefold. LKB:Ti,Mg is a low-Z material (Z(eff)=8.89) with slow signal fading. Its radiation sensitivity is 12 times lower that the sensitivity of TLD-100. The dose response is linear at doses up to 10(3) Gy. The trap parameters, such as the kinetics order, activation energy, and frequency factor, which are related to the glow peak, were determined using TolAnal software.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95a94bed4ae061c621e7602ffc35cbfb https://doi.org/10.1016/j.apradiso.2014.05.023 Zobrazit plný text záznamu Full Text from ScienceDirect