Luminescence characteristics of C 5+ ions and 60 Co irradiated Li 2 BaP 2 O 7 :Dy 3+ phosphor

Wani, Javaid Ahmad; Dhoble, N.S.; Lochab, S.P.; Dhoble, S.J.

doi:10.1016/j.nimb.2015.01.054

Cited by 24 publications

(5 citation statements)

References 35 publications

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“…In the last few decades TL studies of phosphate‐based phosphors such as Li 3 PO 4 :Cu,Mg, Li 4 P 2 O 7 :Cu, Ca 5 (PO 4 ) 3 OH:Eu, NaZr 2 (PO 4 ) 3 and Li 2 BaP 2 O 7 :Dy have been carried out by many researchers . It was observed that some of the phosphors are convenient for dosimetry purposes due to their strong TL intensity and stability of luminescence signal.…”

Section: Introductionmentioning

confidence: 99%

Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

et al. 2018

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Thermoluminescence (TL) measurements were carried out on europium (Eu) doped magnesium pyrophosphate (Mg P O ) nanopowders using gamma irradiation in the dose range of 0.1 to 3 kGy. The powder samples were successfully synthesized by chemical co-precipitation synthesis route. The formation and crystallinity of the compound was confirmed by powder X-ray diffraction (PXRD) pattern. The estimated particle size was found to be in nanometer scale by using Debye Scherer's formula. A scanning electron microscopy (SEM) study was carried out for the morphological characteristics of as synthesized Mg P O :Eu phosphor. Photoluminescence (PL) study was carried out to confirm the presence of the rare-earth ion and its valence state. The TL analysis of synthesized samples were performed after the irradiation of Mg P O :Eu with cobalt-60 ( Co) gamma rays. The high and low intensity peaks of TL glow curve appeared at around 400 K, 450 K, 500 K and 596 K respectively. The appreciable shift in peak positions has been observed for different concentrations of Eu ion. The trapping parameters, namely activation energy (E), order of kinetics (b) and frequency factor (s) have been determined using thermal cleaning process, peak shape (Chen's) method and glow curve deconvolution (GCD) functions.

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Section: Introductionmentioning

confidence: 99%

Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

et al. 2018

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“…Recently, Kore et al (12) reported CaMg 3 (SO 4 ) 4 :Dy 3+ phosphor for carbon ion dosimetry, which shows 3.5 times more sensitivity than commercial CaSO 4 :Dy Thermoluminescent dosimeter (TLD) phosphor. Other researchers have also reported the use of phosphor in carbon ion dosimetry (13,14). Ce 3+ -activated LiCaAlF 6 is a well-known phosphor with diverse applications in solid-state tunable lasers and scintillators (15)(16)(17)(18)(19).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of thermoluminescence characteristics in γ‐ray and C⁵⁺ ion beam‐irradiated LiCaAlF₆:Ce phosphor

Yerpude

Dhoble²,

Lochab

et al. 2016

Luminescence

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We compare the thermoluminescence (TL) behavior of Ce(3+) ion-activated LiCaAlF6 exposed to γ-rays and a carbon ion beam. The reported phosphor is synthesized using an in-house precipitation method with varying concentrations of activator ion and is characterized by X-ray diffraction (XRD) and TL. Rietveld refinement is performed to study the structural statistics. The TL glow curve consists of a prominent glow peak at 232°C with three shoulders at 115, 159 and 333°C when exposed to γ-rays from a (60) Co source. When exposed to a C(5+) ion beam, the TL glow curve consists of five peaks with peak temperatures near 156, 221, 250, 287 and 330°C, and is found to vary slightly with changing fluence. Glow curve convolution deconvolution (GCCD) functions are applied to the TL curves for complete analysis of the glow curve structure and TL traps. The order of kinetics (b), activation energy (E) and frequency factor are determined using Chen's peak shape method and theoretical curves are drawn using GCCD functions. A track interaction model (TIM) is used to explain the sublinearity/saturation at higher fluences. Ion beam parameters are analyzed using Monte-Carlo simulation-based SRIM-2013 code. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Further, the variation of different photon sensing properties were also analysed with respect to photon energy and nature of the TLDs (chemical composition/density). The chemical composition and density of the selected TLDs 7,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] were compiled and listed in Table I. All the selected TLDs are able to measure the doses from different nuclear radiations over wide ranges from μGy to KGy with few exceptions.…”

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Numerical Investigation on Photon Sensing Parameters for Some Thermoluminescence Dosimeters: A Comparative Study

Kaur

et al. 2022

ECS Sens. Plus

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In the present work, twelve inorganic thermoluminescence dosimeteric (TLD) materials doped with some rare earth elements (LiF:Sm, LiBaP2O7:Eu, CaCO3:Eu, CaSO4:Dy, SrSO4:Sm, CdSO4:Dy, BaSO4:Eu, Li2B4O7:Dy, MgB4O7:Gd, Al2O3:Gd, MgAl2O4:Ce, and LiCaAlF6:Eu) and three organic TLD materials (C3H7NO2, C7H8O2 and C4H6BaO4) were selected for comparative analysis on the basis of different photon sensing parameters. About nine photon sensing parameters viz. mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), mean free path (mfp), half value layer (HVL), tenth value layer (TVL), effective atomic number (EAN), effective electron number (EEN), exposure buildup factor (EBF), and energy absorption buildup factor (EABF) were obtained for the selected fifteen TLDs. The simultaneous variation of these photon sensing parameters for the selected TLDs with photon energy and composition has been analyzed. This analysis will help radiation physicists to easily select a particular dosimeter for their research laboratory from different existing compositions. All photon sensing parameters strongly depends upon incident energy and chemical composition in lower and higher energy regions. Among the selected TLDs; BaSO4:Eu3+ offers best results (maximum values for MAC, EAN, EEN; minimum values for TNPs, EBF, EABF); whereas MgB4O7:Gd3+ offers EAN value close to tissue and less variation in sensing parameters with respect to energy.

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Luminescence characteristics of C 5+ ions and 60 Co irradiated Li 2 BaP 2 O 7 :Dy 3+ phosphor

Cited by 24 publications

References 35 publications

Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

Comparison of thermoluminescence characteristics in γ‐ray and C⁵⁺ ion beam‐irradiated LiCaAlF₆:Ce phosphor

Numerical Investigation on Photon Sensing Parameters for Some Thermoluminescence Dosimeters: A Comparative Study

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Luminescence characteristics of C 5+ ions and 60 Co irradiated Li 2 BaP 2 O 7 :Dy 3+ phosphor

Cited by 24 publications

References 35 publications

Luminescence properties of nanocrystalline Mg2P2O7:Eu phosphor

Luminescence properties of nanocrystalline Mg2P2O7:Eu phosphor

Comparison of thermoluminescence characteristics in γ‐ray and C5+ ion beam‐irradiated LiCaAlF6:Ce phosphor

Numerical Investigation on Photon Sensing Parameters for Some Thermoluminescence Dosimeters: A Comparative Study

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Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

Luminescence properties of nanocrystalline Mg₂P₂O₇:Eu phosphor

Comparison of thermoluminescence characteristics in γ‐ray and C⁵⁺ ion beam‐irradiated LiCaAlF₆:Ce phosphor