| Studies on Thermoluminescence Property of
Thoria Ceramics |
D. D. UPADHYAYA, C. M. SuNTA* AND
B. D. SHARMA**
Pages : 120-123
DOI : 10.1080/0371750X.1983.10822647 |
| Abstract |
| The phenomenon of thermoluminescence has been frequently
employed to obtain information concerning the defects in ionic
solids. Present paper reports the results of an investigation on thermoluminescence
behaviour of sintered thoria samples with respect to
bulk density, sintering atmosphere and the radiation dose.
TL glow curves have peaks around 100°, 146°, 215° and 266°C
with 215°C as the most intense one. Intensity as weD as peak resolution
improved with density. AU the peaks are found to saturate at
about the same y-radiation dose. Emission centres are assigned to be
associated with the variable valence transition metal impurities unintentionally
incorporated in Th02 lattice. |
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