Investigation of luminescence properties of BeO ceramics doped with metals for medical dosimetry

Altunal, V.; Güçkan, V.; Özdemir, A.; Kurt, K.; Ekicibil, Ahmet; Yeğingil, Z.

doi:10.1016/j.optmat.2020.110436

Cited by 19 publications

(3 citation statements)

References 36 publications

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“…In this work, considering this compensation effect, differences in ionic radius and changes in crystal field energy can be considered to cause a significant increase in luminescence signals. The roles of Na + as a dopant contributing to the enhancement of luminescence and improving dosimetric characteristics of BeO ceramic pellets were presented elsewhere in the literature [12,13,57,64].…”

Section: Discussionmentioning

confidence: 99%

A systematic study on luminescence characterization of lanthanide-doped BeO ceramic dosimeters

Altunal

Güçkan

Özdemir

et al. 2021

Journal of Alloys and Compounds

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Section: Discussionmentioning

confidence: 99%

A systematic study on luminescence characterization of lanthanide-doped BeO ceramic dosimeters

Altunal

Güçkan

Özdemir

et al. 2021

Journal of Alloys and Compounds

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“…However, the use of ceramics based on oxides, carbides or nitrides, which have a similar nature of physicochemical and strength properties, as structural materials for nuclear power in the XXI century requires studying the resistance of these materials to the effects of ionizing radiation, as well as subsequent processes of defect formation [9][10][11][12][13][14]. At the same time, the service life of these structural materials, approved during the construction of nuclear power plants, must be determined with high accuracy, which is due not only to the strict requirement to minimize the risk of deformation of the vessel structure or the main components of nuclear reactors exposed to radiation, as well as the impossibility of quickly replacing deformed components from -for the accumulated background radiation during operation.…”

Section: Introductionmentioning

confidence: 99%

Study of irradiation temperature effect on change of structural, optical, and strength properties of BeO ceramics when irradiated with Ar8+ and Xe22 heavy ions

Ryskulov

Здоровец

Kozlovskiy

et al. 2021

J Mater Sci: Mater Electron

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This paper presents the results of the study of the effect of irradiation temperature on structural and optical distortions and deformations, as well as the strength properties of BeO ceramics as a result of irradiation with Ar 8+ and Xe 22+ ions at a radiation dose of 5х10 13 cm -2 . The choice of radiation dose is due to the effect of overlapping defective areas arising along the trajectories of ions in ceramics, which makes it possible to model radiation damage caused by the effect of accumulation as a result of cascade collisions and overlapping damaged areas. The temperature range of 300-1000 K was chosen to simulate different operating conditions, as well as the possibility of simulating partial annealing of defects during irradiation at high temperatures. During the research it was established that hightemperature radiation reduces in uence of size of electronic and nuclear power losses of ions of Ar 8+ and Xe 22+ with energy of 70 MeV and 231 MeV, respectively, on extent of radiation damage of ceramics of BeO. Irradiation at a temperature of 1000 K results in an equal 14% change in dislocation density for these particles, a comparable decrease in the yield intensity of optically stimulated luminescence by 5% and 15%, as well as microhardness by 25% and 30%, respectively.

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“…Among the various types of ceramics, oxide ceramics ZrO 2 , BeO have recently been recognized. With a small value of the thermal neutron capture cross section, good corrosion and degradation resistance, as well as excellent strength and hardness indicators, there are broad prospects for their use as the structural materials of a new generation [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Study of the Effect of Doping ZrO2 Ceramics with MgO to Increase the Resistance to Polymorphic Transformations under the Action of Irradiation

et al. 2021

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The purpose of this study is to assess the effect of doping ZrO2 ceramics with MgO on radiation swelling and polymorphic transformations, as a result of irradiation with heavy ions. Interest in these types of materials is due to the great prospects for their use as structural materials for new-generation reactors. The study established the dependences of the phase composition formation and changes in the structural parameters following a change in the concentration of MgO. It has been established that the main mechanism for changing the structural properties of ceramics is the displacement of the cubic c-ZrO2 phase by the Zr0.9Mg0.1O2 substitution phase, which leads to an increase in the stability of ceramic properties to irradiation. It has been determined that an increase in MgO concentration leads to the formation of an impurity phase Zr0.9Mg0.1O2 due to the type of substitution, resulting in changes to the structural parameters of ceramics. During studies of changes in the strength properties of irradiated ceramics, it was found that the formation of a phase in the Zr0.9Mg0.1O2 structure leads to an increase in the resistance to cracking and embrittlement of the surface layers of ceramics.

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Investigation of luminescence properties of BeO ceramics doped with metals for medical dosimetry

Cited by 19 publications

References 36 publications

A systematic study on luminescence characterization of lanthanide-doped BeO ceramic dosimeters

A systematic study on luminescence characterization of lanthanide-doped BeO ceramic dosimeters

Study of irradiation temperature effect on change of structural, optical, and strength properties of BeO ceramics when irradiated with Ar8+ and Xe22 heavy ions

Study of the Effect of Doping ZrO2 Ceramics with MgO to Increase the Resistance to Polymorphic Transformations under the Action of Irradiation

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