Scintillation and dosimetric properties of Eu-doped SrCO3 ceramics prepared by spark plasma sintering method

Abstract

Eu-doped SrCO3 (Eu:SrCO3) ceramics are prepared by a spark plasma sintering (SPS) technique. In photoluminescence (PL), emissions around 615nm due to 4f4f transition of Eu3+ appear under several excitation wavelengths. The PL decay time constants are 314 ns due to the host and 400600 μs due to Eu3+. The X-ray induced scintillation spectra show an intense emission peak and some small bands around 615nm and scintillation decay time constants are 210224 μ s. In thermally stimulated luminescence (TSL) after X-ray irradiation, a strong TSL glow peak is observed in 450°C and TSL intensity increase in association with Eu concentration.