Ja. Mares et al., CERIUM-DOPED RE3- SPECTROSCOPY AND RADIATION-INDUCED DEFECTS(ALO3 PEROVSKITE SCINTILLATORS ), Journal of alloys and compounds, 277, 1998, pp. 200-204
Spectroscopic and scintillation properties of RE3+AlO3:Ce pure and mix
ed perovskite crystals are presented for RE3+=Y3+, Gd3+ and Lu3+. Qual
itative interpretation of gamma-ray induced centres in the crystals (u
p to 3000 Gy dose) have shown that different types of impurities, such
as O- hole centres and F+ electron colour centres, arise in these cry
stals and can change the RE3+ ion valency or even change the ion valen
cy unexpectedly. (C) 1998 Elsevier Science S.A.