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Radiation Protection Dosimetry 33:107-110 (1990)
© 1990 Oxford University Press

Luminescence and Dosimetric Performances of KMgF3 Crystals Doped with Metal Impurity Ions

C. Furetta, C. Bacci, B. Rispoli, C. Sanipoli and A. Scacco

Thermoluminescence spectra have been recorded for crystals of pure KMgF3, KMgF3:Pb2+ and KMgF3:Eu3+, with the aim of identifying new phosphors for radiation dosimetry. Glow peaks, due to thermal activation of colour centres formed by ß or ? irradiation, were measured in both pure and doped materials. Typical thermoluminescence signals due to Pb2+ or Eu3+ impurities have been obtained, besides those of the host KMgF3. The intensity of the thermoluminescence peaks is not very high in Pb2+-doped samples, while Eu3+ ions are found to be excellent activators, as usual for rare earth impurities. In KMgF3:Eu3+ a new prominent peak has been found very efficient for monitoring radiation doses, because of its high sensitivity, good stability over time and elevated activation energy.


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E. Caselli, C. Furetta, P. Molina, M. Santiago, F. Spano, and M. Lester
Kinetic study of the thermoluminescence of KMgF3:LaF3 compounds employing the general one trap model
Radiat Prot Dosimetry, September 1, 2006; 119(1-4): 148 - 152.
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