Characteristics of LiAlO2 – Radioluminescence and optically stimulated luminescence

Lee, J.I.; Pradhan, A.S.; Kim, J.L.; Chang, Insu; Kim, B.H.; Chung, K.S.

doi:10.1016/j.radmeas.2013.01.066

Cited by 20 publications

(5 citation statements)

References 4 publications

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“…The CW-OSL intensity per unit mass of LiAlO 2 was about 10 times higher than that of Al 2 O 3 :C. The measured dose-response was found to be linear in the tested dose range from 0.5 mGy to 0.5 Gy. These results, which are in agreement with the findings of Lee et al (2012Lee et al ( , 2013, seem to indicate that the samples studied in this work have similar characteristics as the Korean material. The obtained results should be therefore also relevant to the Korean samples.…”

Section: Resultssupporting

confidence: 92%

“…It allows registering light with the wavelengths from 300 to 400 nm (UV range). This range fits exactly the OSL emission spectra of LiAlO 2 with peaks at 332 nm, 344 nm and 361 nm (Lee et al 2013). Before each measurement samples were annealed in the reader at 450 o C for 240 s. This procedure ensures erasing any possible residual signal.…”

Section: Methodssupporting

confidence: 64%

“…The papers by Lee at al. (2012Lee at al. ( , 2013 are focused mainly on the general characterization of luminescence of lithium aluminate and on its dosimetric properties.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of TL and OSL kinetics of lithium aluminate

Twardak

Bilski

Marczewska

et al. 2014

Radiation Measurements

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Lithium aluminate (LiAlO 2 ) polycrystalline material showing high OSL sensitivity and linear dose response was prepared at IFJ Krakow. The kinetic parameters of OSL and TL processes were evaluated using various experimental techniques: LM-OSL deconvolution, TL glow-curve deconvolution, variable heating rate and isothermal decay. The OSL signal was found to consist of four components, one of them exhibiting a very slow decay. The TL glow-curve possesses two apparent peaks at approximately 85 o C and at 165 o C, which both seem to follow first order kinetics. These peaks seem to have a composite structure and as many as six peaks were found in the glowcurve.

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Section: Resultssupporting

confidence: 92%

Section: Methodssupporting

confidence: 64%

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Analysis of TL and OSL kinetics of lithium aluminate

Twardak

Bilski

Marczewska

et al. 2014

Radiation Measurements

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“…Lithium aluminates (LiAlO 2 ) are important materials in various health and energy applications. For instance, in dosimetry, γ‐LiAlO 2 is considered as a novel material for optically stimulated luminescence (OSL), offering a superior sensitivity to the conventional carbon‐doped Al 2 O 3 . In batteries, LiAlO 2 nanocrystals and mesoporous materials are critical components in the electrolyte composites .…”

Section: Introductionmentioning

confidence: 99%

Role of interfaces in damage process of irradiated lithium aluminate nanocrystals

Senor

Devanathan

2018

J Am Ceram Soc

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Molecular dynamics simulations were performed to understand the differences in the response of single crystal and nanocrystalline γ‐LiAlO2 to energy deposition by 10 keV Li recoils. The simulations are performed at 573 K and focus on the damage production in the absence of thermal annealing. The grain boundaries in the nanocrystals are found to be amorphous. Analyses of the fate of the beam ions show that the amorphous grain boundaries and differently oriented nanograins increase the number of backscattered ions and decrease the number of transmitted ions. Damaged regions protruding from the grain boundaries provide a direct evidence of the role of the grain boundaries as scattering centers in collision cascades. The simulations show that the defect density produced in the nanocrystals is about twice that in the single crystals. In both samples, Li defects account for 70% of the defects, demonstrating that LiO4 tetrahedra are much more susceptible to damage than AlO4 tetrahedra. Furthermore, Li defects occur preferentially near grain boundaries. Diffusion simulations confirm the limited thermal diffusion of defects at 573 K, effectively separating the damage production from thermal annealing in the irradiation simulations. Nevertheless, the mean square displacements of grain‐boundary defects are found to be larger than lattice defects and surface defects.

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“…BeO need to take specially because its dust is very toxic and its inhaling could lung deceases called berylliosis. TL/OSL highly sensitive phosphors, are investigated as NaMgF 3 :Eu 2+ [5], NaLi 2 PO 4 :Eu [12], NaLi 2 PO 4 :Ce [10], SiO 2 :Cu [2], LiMgPO 4 :Tb,B [4], Y 3 Al 5 O 12 :C [6], Na 2 SiF 6 :Cu,P [1], Al 2 O 3 :B [14], LiAlO 2 [7], MgO:Tb [3]. However, most of them suffered with their limitations like low sensitivity, high fading, reusability issues, low dose saturation and complicated TL glow curves.…”

Section: Introductionmentioning

confidence: 99%

Optically Stimulated Luminescence in Eu\(^{3+}\) Doped NaLi\(_2\)PO\(_4\) Phosphor: Studies on Effect of Particle Size

Bai

Sahare

Singh

et al. 2022

Jour. Atom. Mol. Conden. Matt. Nano Physics

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We report the optically stimulated luminescence of Eu 3+ doped NaLi 2 PO 4 synthesized by solid state diffusion method which is crushed and sieved further using Ball milled for different time period (1 to 10 days) with different particle sizes ranging from micro to nano sizes are obtained. Formation of the material was confirmed by XRD analysis and matched peak to peak with JCPDS#80-2110. Scanning electron microscope (SEM) images were used for determining its particle size(s). Optically stimulated luminescence (OSL) characteristics were studied to see the effect of particle size after irradiating with γ-rays from Co 60 source for wide dose range (10 Gy-100 KGy). It was found that OSL sensitivity depends on particle size of the material. Easy method of synthesis, good sensitivity, low fading, good chemical stability, etc. make this OSLD nano phosphor a good candidate for radiation dosimetry using OSL.

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Characteristics of LiAlO2 – Radioluminescence and optically stimulated luminescence

Cited by 20 publications

References 4 publications

Analysis of TL and OSL kinetics of lithium aluminate

Analysis of TL and OSL kinetics of lithium aluminate

Role of interfaces in damage process of irradiated lithium aluminate nanocrystals

Optically Stimulated Luminescence in Eu\(^{3+}\) Doped NaLi\(_2\)PO\(_4\) Phosphor: Studies on Effect of Particle Size

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