Luminescence and scintillation properties of Gd/sub 2/O/sub 2/S:Tb,Ce ceramics

Gorokhova, E. I.; Demidenko, V. A.; Mikhrin, S. B.; Родный, П. А.; Eijk, C.W.E. van

doi:10.1109/tns.2005.862827

Cited by 31 publications

(19 citation statements)

References 11 publications

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“…This method was previously used in development of scintillation ceramics Gd2O2S:Pr,Ce [55] and ZnO:Zn [56]. ZnO-ceramics were obtained using powderlike zinc oxide with an initial particle size in the range 90-600 nm [57][58][59][60].…”

Section: Ceramicsmentioning

confidence: 99%

Optical and luminescence properties of zinc oxide (Review)

Родный¹,

Khodyuk²

2011

Opt. Spectrosc.

375

190

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Abstract-We generalize and systematize basic experimental data on optical and luminescence properties of ZnO single crystals, thin films, powders, ceramics, and nanocrystals. We consider and study mechanisms by which two main emission bands occur, a short-wavelength band near the fundamental absorption edge and a broad long-wavelength band, the maximum of which usually lies in the green spectral range. We determine a relationship between the two luminescence bands and study in detail the possibility of controlling the characteristics of ZnO by varying the maximum position of the short-wavelength band. We show that the optical and luminescence characteristics of ZnO largely depend on the choice of the corresponding impurity and the parameters of the synthesis and subsequent treatment of the sample. Prospects for using zinc oxide as a scintillator material are discussed. Additionally, we consider experimental results that are of principal interest for practice.

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Section: Ceramicsmentioning

confidence: 99%

Optical and luminescence properties of zinc oxide (Review)

Родный¹,

Khodyuk²

2011

Opt. Spectrosc.

375

190

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“…Currently thallium‐doped cesium iodide (CsI:Tl) and terbium‐doped gadolinium oxysulfide (Gd 2 O 2 S:Tb, GOS) are widely being used as a scintillator for indirect‐type X‐ray detector. However, the CsI:Tl scintillator requires an expensive and time‐consuming vacuum process to make thick crystalline scintillator film so that it is inherently brittle and fragile, which limits its application to flexible detection such as oral and dental imaging .…”

mentioning

confidence: 99%

High‐Performance Next‐Generation Perovskite Nanocrystal Scintillator for Nondestructive X‐Ray Imaging

et al. 2018

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Readily commercializable and cost-effective next-generation CsPbBr perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm at modulation transfer function (MTF) = 0.2 and 12.5-8.9 lp mm for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy s of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm at MTF = 0.2 and 6.3 lp mm for a linear line chart, response time = ≈1200 ns) because the PNCs-based scintillator has ≈5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.

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“…In radiation therapy these low-energy (< 100 keV) secondary electrons are used to deliver the energy that destroys malignant tissue. In our detector, the secondary electrons created excite the Gd 3+ (which is contained within a ceramic host-matrix) that then transfers its energy to the rare-earth Tb 3+ dopant [20,21]. The luminescence from the Tb 3+ is then detected by the OPV.…”

Section: Resultsmentioning

confidence: 99%

Detecting 6MV X-rays using an organic photovoltaic device

Kingsley

Pearson

Harris

et al. 2009

Organic Electronics

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An organic photovoltaic (OPV) device has been used in conjunction with a flexible inorganic phosphor to produce a radiation tolerant, efficient and linear detector for 6 MV X-Rays. The OPVs were based on a blend of poly(3-hexylthiophene-2,5-diyl) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). We show that the devices have a sensitivity an order of magnitude higher than a commercial silicon detector used as a reference. Exposure to 360 Grays of radiation resulted in a small (2%) degradation in performance demonstrating that these detectors have the potential to be used as flexible, real-time, in-vivo dosimeters for oncology treatments.

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Luminescence and scintillation properties of Gd/sub 2/O/sub 2/S:Tb,Ce ceramics

Cited by 31 publications

References 11 publications

Optical and luminescence properties of zinc oxide (Review)

Optical and luminescence properties of zinc oxide (Review)

High‐Performance Next‐Generation Perovskite Nanocrystal Scintillator for Nondestructive X‐Ray Imaging

Detecting 6MV X-rays using an organic photovoltaic device

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