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Scintillation Response of Nd-Doped LaMgAl 11 O 19 Single Crystals Emitting NIR Photons for High-Dose Monitoring.

Daisuke NakauchiTakumi KatoNoriaki KawaguchiTakayuki Yanagida
Published in: Sensors (Basel, Switzerland) (2022)
The Nd-doped LaMgAl 11 O 19 single crystals were synthesized by the floating zone method, and the photoluminescence and scintillation properties were evaluated. Under X-ray irradiation, several sharp emission peaks due to the 4f-4f transitions of Nd 3+ were observed at 900, 1060, and 1340 nm in the near-infrared range, and the decay curves show the typical decay time for Nd 3+ . The samples show good afterglow properties comparable with practical X-ray scintillators. The 1% and 3% Nd-doped LaMgAl 11 O 19 samples show a good linearity in the dynamic range from 6-60,000 mGy/h.
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