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TL and OSL dosimetric properties of Ge30As4S66 chalcogenic glass system doped with DY

V. BENEA1,* , A. TIMAR-GABOR2, M. IOVU1, E. COLOMEICO1, C. COSMA2, O.I. SHPOTYUK3

Affiliation

  1. Institute of Applied Physics, Academy of Sciences of Moldova, Str. Academiei 5, MD-2028 Chisinau Republic of Moldova
  2. Faculty of Environmental Science, Babes-Bolyai University, Fantanele 30, 400294 Cluj Napoca, Romania
  3. Scientific Research Company “Carat”, Str. Stryjska 202, Lviv , Ukraine

Abstract

In this work were studied the thermoluminescence (TL) and optically stimulated luminescence (OSL) dosimetric characteristics of Ge30As4S66 chalcogenide glass doped with Dy2O3 at various concentrations. The material displayed good sensitivity for β-irradiation and showed that TL and OSL signals are dependent on β-irradiation dose and Dy2O3 content. The dosimetric characteristics of Ge30As4S66 glass specimens were read from the TL β -dose response curve, which showed a reasonably good linearity behavior between glow peak areas and β -dose values. Due to its encouraging characteristics such as acceptable batch homogeneity and good measurement reproducibility, the Ge30As4S66 chalcogenide glass can be considered as a candidate material for dosimetry in the range from 0.5 to approximately 100 Gy..

Keywords

Chalcogenide glasses, Thermoluminescent dosimetry, Ionizing radiation.

Submitted at: June 2, 2011
Accepted at: Nov. 23, 2011

Citation

V. BENEA, A. TIMAR-GABOR, M. IOVU, E. COLOMEICO, C. COSMA, O.I. SHPOTYUK, TL and OSL dosimetric properties of Ge30As4S66 chalcogenic glass system doped with DY, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 11-12, pp. 1447-1449 (2011)