Detection and dosimetry of irradiated biominerals with thermoluminescence, radiolyoluminescence and electron spin resonance measurements: comparison of methods

Anderle, H.; Steffan, Ilse; Wild, E.; Hille, P.; Bermanec, Vladimir; Sövegjarto, F.

doi:10.1016/s1350-4487(98)00038-9

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…The authors of the source [13] used EPR for detection of irradiation in the bones of agricultural animals and poultry, fish and mollusc shell, and found that the EPR signals are stable in mammal bones and mollusc shells.…”

Section: Methodsmentioning

confidence: 99%

Determining the Dose of Radiation and Radurisation Effects on the Antioxidant Activity of Fish and the Thermophysical Characteristics of Fish Muscle Tissue

Timakova¹,

Tikhonov²,

Тихонова³

et al. 2019

Foods

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The aim of this article is to develop a method for determining the dose of radiation in the processing of chilled fish and its effect on the antioxidant activity and thermophysical characteristics of muscle tissue. Radiation processing of chilled fish was performed using a linear electron accelerator model LEA-10-10S2. The dose of radiation was determined by the method of electron-paramagnetic resonance. After being treated with ionizing radiation, the cooled fish meets the requirements of the technical regulations of TR TU 021/2011 “On food safety” and TR EAEU 040/2016 “On the safety of fish and fish products”. As a result of our research, a correlation was established between the area of the Electron Paramagnetic Resonance (EPR) signal and the absorbed dose of the radiation dose. We proved a decrease in the antioxidant activity of muscle tissue of fish with an increase in radiation dose. It is established that radiation treatment of chilled fish affects the thermophysical properties of muscle tissue.

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Section: Methodsmentioning

confidence: 99%

Determining the Dose of Radiation and Radurisation Effects on the Antioxidant Activity of Fish and the Thermophysical Characteristics of Fish Muscle Tissue

Timakova¹,

Tikhonov²,

Тихонова³

et al. 2019

Foods

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show abstract

“…There is much interest in the EPR spectra of carbonate containing systems of biological origin exposed to ionizing radiation because of their numerous applications, e.g. in medicine, retrospective dosimetry using tooth enamel, detection of free radicals in bone containing food and dating of archaeological human and animal remnants [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Carbonates are common minerals found in nature.…”

Section: Introductionmentioning

confidence: 99%

EPR study of radicals produced by gamma-irradiation in marine mollusc (Venussp.) fossils

Köşeoğlu

Köksal

Çiftçi

2004

Radiation Effects and Defects in Solids

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In this study, gamma-irradiated marine mollusc (Venus sp.) fossils were investigated by electron paramagnetic resonance (EPR) at ambient temperature. Powder X-ray diffraction technique indicates that the Venus sp. fossils were made mainly of CaCO 3 . Before γ -irradiation, the EPR lines of the powder of fossil samples showed the existence of Mn 2+ (I = 5/2, 100% natural abundance) ions with g av = 2.0055 and A av = 9.4 mT. γ -Irradiation-induced additional defects in Venus sp. fossil were attributed to axialĊO − 3 (g ⊥ = 2.0171, g // = 2.0048), orthorhombiċ CO − 2 (g x = 2.0030, g z = 2.0018, g y = 1.9973, g av = 2.0007), freely rotatingĊO − 2 (g iso = 2.0007), isotropicṠO − 2 (g = 2.0057), axialṠO − 3 (g ⊥ = 2.0036, g // = 2.0024) and isotropicṠO − 3 (g = 2.0032) free radicals. The g-values of these free radicals were compared with the literature data belonging to similar defects.

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OSL and thermally assisted OSL response in dental enamel for its possible application in retrospective dosimetry

Soni

Mishra

Polymeris

et al. 2014

Radiat Environ Biophys

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Dental enamel was studied for its thermoluminescence (TL) and optically stimulated luminescence (OSL) defects. The TL studies showed a wide glow curve with multiple peaks. The thermally assisted OSL (TA-OSL) studies showed that the integrated TA-OSL and thus OSL signal increases with readout temperature between 100 and 250 °C, due to the temperature dependence of OSL. The thermally assisted energy E A associated with this increase is found to be 0.21 ± 0.015 eV. On the other hand, the signal intensity decreases with temperature between 260 and 450 °C. This decrease could be due to depletion of OSL active traps or possible thermal quenching. The increase of the OSL signal at increased temperature can be used to enhance the sensitivity of dental enamel for ex vivo measurements in retrospective dosimetry. The emission and excitation spectra of its luminescence centers were studied by photoluminescence and were found to be at 412 and 324 nm, respectively. It was found to possess multiple OSL active traps having closely lying photoionization cross sections characterized by continuous wave OSL and nonlinear OSL methods. The investigated dental enamel samples showed a linear OSL dose response up to 500 Gy. The dose threshold was found to be 100 mGy using a highly sensitive compact OSL reader with blue LED (470 nm) stimulation.

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Detection and dosimetry of irradiated biominerals with thermoluminescence, radiolyoluminescence and electron spin resonance measurements: comparison of methods

Cited by 9 publications

References 19 publications

Determining the Dose of Radiation and Radurisation Effects on the Antioxidant Activity of Fish and the Thermophysical Characteristics of Fish Muscle Tissue

Determining the Dose of Radiation and Radurisation Effects on the Antioxidant Activity of Fish and the Thermophysical Characteristics of Fish Muscle Tissue

EPR study of radicals produced by gamma-irradiation in marine mollusc (Venussp.) fossils

OSL and thermally assisted OSL response in dental enamel for its possible application in retrospective dosimetry

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