TL/OSL signal of CaSO4:Eu,Ag samples produced by variations of the slow evaporation route
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Radiation Measurements
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The aim of this work was to produce crystals of CaSO4 doped with europium (Eu) and silver (Ag) nanoparticles,
by means of three different preparation routes, and to study their applicability in radiation dosimetry by the TL
and OSL techniques. The crystals were produced by variations of the slow evaporation route. Samples of CaSO4:
Eu,Ag(a) were obtained using europium oxide and silver particles as dopants. For the growth of the crystals of
CaSO4:Eu,Ag(b), silver was incorporated in nitrate form. CaSO4:Eu,Ag(c) phosphorus were synthetized mixing
europium oxide in a colloidal suspension of silver nanoparticles. Optical characterization confirmed the presence
of Eu3þ/Eu2þ in the crystal matrix. Dosimetric characteristics were evaluated after the exposure of the samples to
a90Sr/90Y source. The CaSO4:Eu,Ag(a) and CaSO4:Eu,Ag(b) composites presented the most intense signals, the
lowest detectable doses, and showed a linear and reproducible dose response, but the CaSO4:Eu,Ag(a) samples
showed the best potential for application in TL/OSL dosimetry.
Como referenciar
JUNOT, DANILO O.; SOUZA, DIVANIZIA N.; CALDAS, LINDA V.E. TL/OSL signal of CaSO4:Eu,Ag samples produced by variations of the slow evaporation route. Radiation Measurements, v. 135, p. 1-8, 2020. DOI: 10.1016/j.radmeas.2020.106334. Disponível em: http://repositorio.ipen.br/handle/123456789/31422. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.