Tm-Tstop analysis and dosimetric properties of Ce doped BaB4O7 phosphor

Gavhane, Kishor H.; Bhadane, Mahesh S.; Bhoir, Akash S.; Kulkarni, Preeti Padhye; Patil, B.J.; Bhoraskar, V.N.; Dhole, S.D.; Dahiwale, S.S.

doi:10.1016/j.jallcom.2019.152805

Cited by 25 publications

(9 citation statements)

References 37 publications

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“…The T m -T stop method was utilized to determine the number and locations of the overlapped peaks in the glow curves of different alumina phases [26][27][28][29].…”

Section: Thermoluminescence Glow Curve Analysis T M -T Stop Methodsmentioning

confidence: 99%

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Abdou

Sabry

El-Faramawy

2022

J Radioanal Nucl Chem

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Nanocrystalline boehmite material was synthesized using the hydrothermal method. Different annealing temperatures have been used to transform boehmite into different alumina phases to study the effect of different phase transitions on the thermoluminescence properties of alumina. XRD analysis was carried out to investigate the crystal structure of the different alumina phases. The thermoluminescence glow curves for different alumina phases showed different structures; however, the sensitivity was almost constant for all the phase transitions of alumina over the applied dose ranging from 0.55 to 330 Gy.

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“…The T m -T stop method was utilized to determine the number and locations of the overlapped peaks in the glow curves of different alumina phases [26][27][28][29].…”

Section: Thermoluminescence Glow Curve Analysis T M -T Stop Methodsmentioning

confidence: 99%

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Abdou

Sabry

El-Faramawy

2022

J Radioanal Nucl Chem

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“…As a result, a further rise in the dose levels leads to saturation due to the limited number of available traps vacant in the phosphor. [46][47][48] In a nutshell, the number of defects/trapping centers created in the particles keeps on increasing with the increasing dose till saturation is obtained. This explains the linearity of the NaGdF 4 :3% Tb 3+ phosphor over the dose range 100 Gy-20 kGy and further saturation.…”

Section: Papermentioning

confidence: 99%

“…[51][52][53][54] We plotted the slope of the straight line (ln(I) vs. 1/T) with each heating step interval of 5 1C to obtain the activation energy. 46,55 The activation energies thus found were then plotted against the temperature to which the sample was heated, which often resulted in the ''staircase''-shaped E-T curve as shown in Fig. 12.…”

Section: Experimental Tl Glow Curve Studymentioning

confidence: 99%

Investigation of the photoluminescence and novel thermoluminescence dosimetric properties of NaGdF₄:Tb³⁺ phosphors

et al. 2020

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“…The study of the thermoluminescence of Ce-doped BaB 4 O 7 crystals synthesized by the solid-state method was carried out after γ-ray irradiation. The thermoluminescence intensity shows a linear increase with an increase in dose from 1 Gy to 3 kGy; the best results are obtained at 2% cerium doping …”

Section: Introductionmentioning

confidence: 96%

“…The thermoluminescence intensity shows a linear increase with an increase in dose from 1 Gy to 3 kGy; the best results are obtained at 2% cerium doping. 12 In 2009, the new orthorhombic β-BaB 4 O 7 (Pnmb) phase was synthesized under the conditions of 7. Walker-type multianvil apparatus.…”

Section: ■ Introductionmentioning

confidence: 99%

High-Pressure Synthesis, Electronic Properties, and Raman Spectroscopy of Barium Tetraborate BaB₄O₇ Polymorphs

Bekker

Sagatov

Podborodnikov

et al. 2022

Crystal Growth & Design

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The synthesis of high-pressure modification of barium tetraborate β-BaB 4 O 7 has been carried out at 3 GPa and 1000 °C in a DIA-type apparatus. Single-crystal X-ray analysis shows that β-BaB 4 O 7 crystallizes in a centrosymmetric group (Pnam (#62), a = 9.0029(3) Å, b = 4.3006(7) Å, c = 10.9795(8) Å, Z = 4). The density of the β-BaB 4 O 7 phase increases by 22% relative to the ambient-pressure α-BaB 4 O 7 phase. The P−T diagrams for the αand β-BaB 4 O 7 phases have been calculated. The dynamic stability of β-BaB 4 O 7 at ambient pressure was confirmed by the absence of imaginary modes in the phonon spectra. The band gap values obtained using the HSE06 hybrid functional are 6.821 and 8.075 eV for αand β-BaB 4 O 7 phases, respectively, with indirect transitions. The value of 8.075 eV indicates that β-BaB 4 O 7 can transmit to the deep-UV region. For the first time, the Raman spectra of the αand β-BaB 4 O 7 phases have been studied by both experimental and numerical methods. The vasp_raman.py code was used to calculate the polarizability tensors for each crystal mode. The assignment of vibrations of cations, interconnected triangle, and/or tetrahedral groups (BO 3 and BO 4 ) of both modifications was carried out by comparing the experimental and ab initio calculated spectra and the result is in agreement with the interpretation developed for borates, aluminosilicates, and carbonates.

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Tm-Tstop analysis and dosimetric properties of Ce doped BaB4O7 phosphor

Cited by 25 publications

References 37 publications

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Investigation of the photoluminescence and novel thermoluminescence dosimetric properties of NaGdF₄:Tb³⁺ phosphors

High-Pressure Synthesis, Electronic Properties, and Raman Spectroscopy of Barium Tetraborate BaB₄O₇ Polymorphs

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Tm-Tstop analysis and dosimetric properties of Ce doped BaB4O7 phosphor

Cited by 25 publications

References 37 publications

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Thermoluminescence characteristics of different phase transitions from nanocrystalline alumina

Investigation of the photoluminescence and novel thermoluminescence dosimetric properties of NaGdF4:Tb3+ phosphors

High-Pressure Synthesis, Electronic Properties, and Raman Spectroscopy of Barium Tetraborate BaB4O7 Polymorphs

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Product

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Investigation of the photoluminescence and novel thermoluminescence dosimetric properties of NaGdF₄:Tb³⁺ phosphors

High-Pressure Synthesis, Electronic Properties, and Raman Spectroscopy of Barium Tetraborate BaB₄O₇ Polymorphs