Evaluation of Optically Stimulated Luminescence Properties of Tm-doped NaMgF3 Single Crystal

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The optical and optically stimulated luminescence (OSL) properties of Ce-doped 20CsCl-20CaCl 2 -60ZnCl 2 (CCZ) glasses were evaluated. All the Ce-doped CCZ glasses showed a broad emission peak at 370 nm upon excitation at 320 nm, and the decay time suggested that the origin was the 5d-4f transitions of Ce 3+ . After X-ray irradiation, the Ce-doped CCZ glasses showed OSL around 370 nm under stimulation at 400 nm. All the glasses exhibited dose response functions with good linearity in the dynamic range of 0.1-10 Gy.

Section: Introductionmentioning

confidence: 99%

Optical and Optically Stimulated Luminescence Properties of Ce-doped CsCl–CaCl2–ZnCl2 Glasses

Ito¹,

Kimura²,

Shiratori³

et al. 2022

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“…There have been many studies on the properties of scintillators and dosimetric materials in the last several decades, (2)(3)(4)(5)(6)12) and research on both types of phosphor materials is still an attractive topic. As recent studies on scintillators and dosimetric materials, single crystals, (19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) sintered ceramics, (32)(33)(34)(35)(36)(37) glasses, (38)(39)(40)(41)(42)(43) eutectics, (44,45) plastics, (46) and organic-inorganic hybrid materials (47) have been reported. Among them, glass materials have the advantages of high transparency, formability, and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Scintillation Properties of Non-doped and Pr-doped BaO–B2O3–SiO2 Glasses and Glass-ceramics

Kawaguchi¹,

Masai²,

Akatsuka³

et al. 2021

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We have studied the scintillation properties of non-doped and Pr-doped BaO-B 2 O 3 -SiO 2 glasses and glass-ceramics. The glass transition temperature (T g ), the temperature of crystallization onset (T x ), and the crystallization peak (T p ) were determined by differential thermal analysis. The glass-ceramics were obtained by heating at three different temperatures (T g + 50 °C, T x , and T p ). We confirmed that the X-ray diffraction peaks can be ascribed to the BaSiO 3 crystalline phase in the glass-ceramic samples. In the X-ray-induced scintillation spectra, we observed the intrinsic luminescence of the host glass and luminescence due to the 4f-4f transition of Pr 3+ ions. In addition, the 1% Pr-doped BaO-B 2 O 3 -SiO 2 glass-ceramic with heating at T g + 50 °C clearly showed luminescence in the wavelength range from 250 to 350 nm under X-ray excitation. Its photoluminescence (PL) decay time was estimated to be 26.28 ns and its luminescence is considered to be due to the 5f-4f transition of Pr 3+ ions.

“…To detect ionizing radiation efficiently, the use of bulk materials is essential since the probability of an interaction between ionizing radiation and a detector material simply depends on the volume of the material. To satisfy this requirement, bulk single crystals, (9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) ceramics, (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) and glasses (32)(33)(34)(35)(36)(37)(38) have been applied for scintillators and dosimeters. Among these material forms, glasses have some advantages such as high chemical durability and high light transmittance, which are preferable for scintillator and dosimeter uses.…”

Section: Introductionmentioning

confidence: 99%

Scintillation Properties of Dy-doped 50NaPO3–50Al(PO3)3 Glasses

Yanagida¹,

Fujimoto²,

Masai³

et al. 2021

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0.5, 1.0, 5.0, and 10.0 mol% Dy-doped 50NaPO 3 -50Al(PO 3 ) 3 glasses were synthesized by the melt-quenching method. All the samples had a high transmittance of up to 90% at visible wavelengths, and some intense emission lines were observed in their photoluminescence and scintillation spectra. When the glasses were irradiated with X-rays with various doses, a linear relationship between the irradiation dose and the thermally stimulated luminescence intensity was confirmed from 10 to 10000 mGy.