Crystal growth, luminescence, and radiation response characteristics of undoped and Nd-doped langasite-type Ca3TaGa3Si2O14
Source abstract
Abstract
Undoped and various concentrations of Nd-doped Ca 3TaGa 3Si 2O 14 (CTGS) single crystals were fabricated via the floating zone technique. The luminescence and radiation response characteristics were investigated. A broad intrinsic luminescence was observed at 300–600 nm. Sharp luminescence appeared at 900, 1060, and 1300 nm in Nd-doped samples and they originated from 4f–4f transitions of Nd 3+. Photoluminescence quantum yields were calculated to be 44.7, 94.1, 87.4, and 75.5% in 0.1, 0.5, 1, and 2% Nd-doped samples, respectively when monitored at near-infrared (NIR) ranges. Linear responses between dose-rate and scintillation outputs in NIR regions were confirmed in Nd-doped samples. The 0.5% Nd-doped CTGS achieved a detection limit of 1 mGy/h.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Radiation Detection and Scintillator Technologies · Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
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