Optically stimulated luminescence and thermoluminescence efficiencies for high-energy heavy charged particle irradiation in Al2O3:C

Yukihara, E.G.; Gaza, Ramona; McKeever, S.W.S.; Soares, Christopher G.

doi:10.1016/s1350-4487(03)00251-8

Cited by 103 publications

(42 citation statements)

References 36 publications

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“…The shift in TSL glow peak position and width might be due to the occupancy of deep traps, since a step annealing procedure gradually shifts the peak back to the original position. The physics of changes in the peak temperature are yet to be understood, but part of the shift to low temperature at high doses may be attributed due to the kinetics of processes as suggested by Yukihara and coworkers (Yukihara et al 2004).…”

Section: Resultsmentioning

confidence: 99%

Thermally stimulated luminescence studies in combustion synthesized polycrystalline aluminum oxide

et al. 2008

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Synthesis of materials by combustion technique results in homogeneous and fine crystalline product. Further, the technique became more popular since it not only saved time and energy but also was easy to process. Aluminum oxide phosphor was synthesized by using urea as fuel in combustion reaction. Photoluminescence (PL) and thermally stimulated luminescence (TSL) characteristics of γ-irradiated aluminum oxide samples were studied. A broad PL emission with a peak at ~ 465 nm and a pair of strong and sharp emissions with peaks at 679 and 695 nm were observed in γ-rayed samples. The PL intensity was observed to increase with increase in γ-ray dose. Two prominent and well resolved TSL glows with peaks at 210°C and 365°C were observed in all γ-irradiated Al 2 O 3 samples. The TSL intensity was also found to increase with increase in γ-ray dose. The TSL glow curves indicated second order kinetics.

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Section: Resultsmentioning

confidence: 99%

Thermally stimulated luminescence studies in combustion synthesized polycrystalline aluminum oxide

et al. 2008

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“…6 shows the thermoluminescence glow curves of Eu 3+ doped magnesium silicate ␥-rayed for 4.658 kGy. The glow curves clearly show two well resolved and well separated glows with peaks around 202 • C (T g1 ) and 345 • C (T g2 ) besides a shoulder with peak at around 240 • C. The glow peak temperature of T g1 and T g2 are almost steady for the entire dose range with increase of Eu 3+ [27]. The peak around 202 • C is due to recombination of charges released from F + center near Mg 2+ /Eu 3+ sites [28] and peak around 345 • C may tentatively be attributed to recombination of F center electrons with holes associated with SiO 4 and Mg 2+ sites.…”

Section: (B)mentioning

confidence: 84%

Photoluminescence and thermoluminescence studies of Mg2SiO4:Eu3+ nano phosphor

Prashantha

Lakshminarasappa

Nagabhushana

2011

Journal of Alloys and Compounds

117

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Phosphor Photoluminescence Thermoluminescence Optical absorption a b s t r a c t Nanoparticles of Eu 3+ doped Mg 2 SiO 4 are prepared using low temperature solution combustion technique with metal nitrate as precursor and urea as fuel. The synthesized samples are calcined at 800• C for 3 h. The Powder X-ray diffraction (PXRD) patterns of the sample reveled orthorhombic structure with ␣-phase. The crystallite size using Scherer's formula is found to be in the range 50-60 nm. • C and 345• C besides a shoulder with peak at ∼240• C are observed. The trapping parameters-activation energy (E), order of kinetics (b) and frequency factor (s) are calculated using glow curve shape method and the results obtained are discussed.

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“…Linearity, fading properties and the effect of the preheating will be represented in this paper. The potential of OSL measurements have also been shown earlier [4] accordingly the study of the combined TL/OSL method will also be presented.…”

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confidence: 90%

Retrospective dosimetry using TL/OSL method

Mesterházy¹,

Osvay²,

Kovács³

2014

Progress in Nuclear Science and Technology

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The increasing risk of violent terror attacks concerning radioactive or nuclear materials require preparatory investigations. Environmental disasters and unexpected events prove also the requirement of different analytical methods which are able to moderate the impact on human race. After these events suitable dose estimation is required within the less time possible. Several methods and processes have been developed in the last few years for retrospective determination or estimation of dose conditions in the affected area. Electronic devices such as SMD resistors have been investigated and results show that suitable sensitivity and dose response verify the use of the method. This paper discusses further and detailed investigations of luminescence properties of SMD resistors and the usage of them in real emergency.

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Optically stimulated luminescence and thermoluminescence efficiencies for high-energy heavy charged particle irradiation in Al2O3:C

Cited by 103 publications

References 36 publications

Thermally stimulated luminescence studies in combustion synthesized polycrystalline aluminum oxide

Thermally stimulated luminescence studies in combustion synthesized polycrystalline aluminum oxide

Photoluminescence and thermoluminescence studies of Mg2SiO4:Eu3+ nano phosphor

Retrospective dosimetry using TL/OSL method

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