Time-resolved OSL studies of YAlO3:Mn2+ crystals

Zhydachevskii Y., LUCHECHKO A., MARABA D., MARTYNYUK N., GLOWACKİ M., BULUR E., ...Daha Fazla

RADIATION MEASUREMENTS, cilt.94, ss.18-22, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 94
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.radmeas.2016.08.007
  • Dergi Adı: RADIATION MEASUREMENTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.18-22
  • Anahtar Kelimeler: YAlO3:Mn, Optically stimulated luminescence (OSL), Time-resolved OSL (TR-OSL), Recombination lifetime, Luminescent dosimetry, OPTICALLY STIMULATED LUMINESCENCE, YALO3-ND SINGLE-CRYSTALS, INDUCED COLOR-CENTERS, RADIATION-DOSIMETRY, BEO CERAMICS, CALCIUM-FLUORIDE, THERMOLUMINESCENCE, ALPHA-AL2O3C, PHOSPHOR, GROWTH
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Time-Resolved Optically Stimulated Luminescence (TR-OSL) from single crystalline YAlO3:Mn2+ samples was investigated using a green light emitting diode (lambda- 525nm) as stimulation light source. The TR-OSL decay curve of the material can be described with a single exponential decay function with a lifetime about 80 ms that does not depend on irradiation dose in the range from 50 mGy to 1 kGy. This OSL decay is superposed on a photoluminescence signal with a much shorter (3.5 ms) decay lifetime. The Mn2+ photoluminescence decay with a lifetime of 3.5 ms can be easily eliminated by corresponding time resolution using pulsed OSL readout. Dose response and thermal stability of the OSL signal are consistent with the previous thermoluminescent (TL) studies of the material. (C) 2016 Elsevier Ltd. All rights reserved.