Photo-transferred luminescence from BeO ceramics

Temperature and radiation dose dependences of the thermoluminescence, photo-transferred luminescence signals from BeO ceramics were investigated using blue-green stimulation (420-550 nm). Several deep traps that act as sources for the photo-transferred luminescence signals, located in 400-625 degrees C region of the TL glow curve, were distinguished.


Optically stimulated luminescence characteristics of BeO nanoparticles synthesized by sol-gel method
ALTUNAL, VOLKAN; YEĞİNGİL, ZEHRA; TÜKEN, TUNÇ; Depci, T.; ÖZDEMİR, ALİ CAN; Guckan, V.; Nur, N.; Kurt, K.; Bulur, Enver (2018-11-01)
Optically Stimulated Luminescence (OSL) properties of the sol-gel synthesized nano-powders of Beryllium Oxide (BeO) were investigated. Luminescence properties of BeO nanoparticles are dependent on the crystal structure, particle size, and morphology and therefore strongly dependent on the way of synthesis, thus the preparation was modified to enhance the OSL signal from the material. Structural, thermal and morphological properties of BeO in nanopowder and pellet forms were studied using X-Ray Diffraction (...
Photo-transferred thermoluminescence of shallow traps in beta-irradiated BeO ceramics
Isik, M.; Bulur, Enver; Hasanlı, Nızamı (2017-07-01)
Photo-transferred thermoluminescence signals from beryllium oxide (BeO) ceramics were measured in the low temperature range of 10-300 K. Samples irradiated at room temperature using a Sr-90/Y-19 beta source were cooled down to 10 K and trapped charges were photo-transferred at this low temperature using the light from a high power blue LED emitting at similar to 470 nm (2.6 eV). Thermoluminescence glow curve recorded at 0.2 K/s heating rate exhibited three peaks around 90, 160 and 185 K. The analyses of the...
Infrared (IR) stimulated luminescence from feldspars with linearly increasing excitation light intensity
Bulur, Enver (1999-01-01)
IR stimulated luminescence signal from potassium and sodium feldspars were studied by linearly increasing the excitation power from zero to a maximum value during the readout. The peak shaped signals observed in both feldspars could be approximated using a linear combination of three first-order components as deduced by curve fitting. The thermal and radiation dose dependent behavior of the IR-stimulated OSL curves were also studied. (C) 1999 Elsevier Science Ltd. All rights reserved.
TL and OSL properties of Mn2+-doped MgGa2O4 phosphor
The oxide MgGa2O4 spinel ceramics doped with Mn2+ ions was synthesized by a solid-state reaction at 1200 degrees C in air. The activator concentration was equal 0.05 mol% of MnO. Phase purity of the synthesized samples was analyzed by X-ray diffraction technique. This spinet ceramics show efficient green emission in the range from 470 to 550 nm with a maximum at about 505 nm under UV or X-ray excitations, which is due to Mn2+ ions. MgGa2O4: Mn2+ exhibits intense thermoluminescence (TL) and optically stimula...
Beta Dosimetry Using Thin Layer a Al2O3 C TL Detectors
GÖKSU, HAYRİYE YETER; Bulur, Enver; WAHL, W (1999-01-01)
The possibility of using thin-layer alpha-Al2O3:C thermoluminescence detectors (TLD) for the measurement of the annual beta dose from natural materials, considered for retrospective luminescence dosimetry, archaeometry and authenticity testing was checked. The annual beta doses from various materials including some porcelains, bricks and soils were determined by storing the detectors underneath the samples in a shielded environment for a period of time. Beta doses from two feldspar standards NBS 70a and NBS...
Citation Formats
E. Bulur, “Photo-transferred luminescence from BeO ceramics,” RADIATION MEASUREMENTS, pp. 334–340, 2007, Accessed: 00, 2020. [Online]. Available: