CHARACTERISTIC THERMOLUMINESCENCE OF GAMMA-IRRADIATED ALUMINA CERAMICS DOPED WITH SOME ALKALI-METALS

Authors
HENAISH BA ELAGRAMI AM ABDELFATTAH WI OSIRIS WG
Citation
Ba. Henaish et al., CHARACTERISTIC THERMOLUMINESCENCE OF GAMMA-IRRADIATED ALUMINA CERAMICS DOPED WITH SOME ALKALI-METALS, Radiation physics and chemistry, 44(1-2), 1994, pp. 73-77
Citations number
13
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
44
Issue
1-2
Year of publication
1994
Pages
73 - 77
Database
ISI
SICI code
0969-806X(1994)44:1-2<73:CTOGAC>2.0.ZU;2-D
Abstract
Thermoluminescence properties of pure Al2O3 -ceramic discs doped with some oxides of alkali metals and B were investigated. Two groups of sa mples were studied: one with a low concentration of B and alkali oxide s and the other with higher concentration. The first group shows a rel atively higher stability and better reproducibility for gamma-radiatio n and neutron-induced TL, which could be utilized in mixed radiation f ield dosimetry. The main disadvantage of these TL-materials is the rel atively high rate of signal fading. A simple course of post irradiatio n heat annealing is proposed to overcome this drawback.