Recombination processes in lanthanum beryllate single crystals doped with Ce3+ and Pr3+ ions

• We studied lanthanum beryllate (BLO) crystals doped with Ce3+ and Pr3+.
• We studied XRL spectra of BLO, BLO:Ce and BLO:Pr at 8–290 K.
• TL glow curves were studied at 8–650 K in spectral integrated regime.
• Temperature quenching of the defect emission was studied for BLO:Ce.
• We discussed both recombination and energy transfer processes in BLO.

The paper presents experimental results on recombination processes in lanthanum beryllate (BLO) single crystals (undoped BLO, and doped with 0.5 at % by Ce3+ and Pr3+ ions) obtained using XRL-spectroscopy at T = 8, 80 and 290 K and thermoluminescence technique in the temperature range of 8–650 K. The paper discusses spectra of the steady-state XRL-luminescence recorded in the energy range from 1.5 to 6.2 eV at different temperatures between 8 and 290 K; temperature dependences of XRL intensity recorded in the temperature range from 8 to 650 K; thermoluminescence glow curves recorded in spectral-integrated regime after X-ray exposure at T0 = 8 or 290 K.