MUMBAI, India, July 11 -- Intellectual Property India has published a patent application (202541060585 A) filed by Saveetha Engineering College, Chennai, Tamil Nadu, on June 25, for 'scintillator device using gd3+doped zinc tantalum boro tellurite ceramic with superior light yield and transparency.'
Inventor(s) include Francis Jeyasingh; and Dr. Vinothkumar Panjanathan.
The application for the patent was published on July 11, under issue no. 28/2025.
According to the abstract released by the Intellectual Property India: "A novel lead-free glass composition incorporating zinc tellurite and doped with.thulium {TmJ+) ions was developed through a melt-quenching synthesis process. The materi-al was formulated using the constituents: 69 mol% TeO,, 5 mol% B,O,, 5 mol% Ta,Os, 5 mol% Sr,CO,, 10 mol% ZnO, 10 mol% CaO, and I mol% Gd,O,. Structural characteristics were assessed using powder X-ray diffraction (XRD), confirming the non-crystalline nature of the sample. Functional group identification was achieved through infrared (FTIR) and Raman vibrational analysis. Optical assessment was performed using UV-Visible spectroscopy, which enabled the estimation of both the optical band gap and the refractive index. Luminescent behavior of the Tm'+ ions was examined via photoluminescence spectroscopy, showing . . characteristic emission profiles. Surface features were visualized using scanning electron microscopy (SEM), while compositional validation was performed with energy-dispersive Xray spectroscopy (EDS). Radiation attenuation capabilities were analyzed by computing key shielding parameters-mass attenuation coefficient (MAC), effective atomic number (Z_eff), half-value layer (HVL), and mean free path (MFP)-using the Phy-X software platfonn. Furthem1ore, the material's response to ionizing radiation was evaluated through them1oluminescence (TL) and thermally stimulated luminescence (TSL) techniques. The integrated findings support the application of this material in high-performance radiation detection and shielding technologies."
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