A review and analysis of the state of the art on beryllium poisoning in research reactors

Wróblewska, Małgorzata; Blanchet, David; Lyoussi, A.; Blaise, Patrick; Jagielski, J.; Marcinkowska, Z.; Boettcher, Agnieszka; Machtyl, Tomasz; Januchta, Marcin; Wilczek, Ireneusz

doi:10.1016/j.anucene.2021.108540

Cited by 10 publications

(3 citation statements)

References 17 publications

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“…where N is the amount of adsorbed gas in mol/g; Δp is the pressure drop in mmHg; V is the volume in mm 3 . Pressure measurements and recordings during the adsorbentadsorbent coexposure were remotely made while irradiating samples in the central channel of the gamma unit.…”

Section: Characterizationmentioning

confidence: 99%

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Radiation-stimulated adsorption processes on the surface of beryllium oxide

et al. 2022

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The paper presents the study results of photo and gamma radiation effect on the beryllium oxide (BeO) surface properties. Photoadsorption studies of О2 on BeO by the methods of infrared (IR) spectroscopy and manometry with a change in the temperature of preliminary annealing from 473 to 1073 K show that samples subjected to preliminary training at 473 K are most active. The maximum of adsorption activity on g-irradiated beryllium oxide is observed on the samples annealed at 673 K before the irradiation. The maximum of paramagnetic centers (PMCs) is also observed on samples annealed at this temperature. Comparison of electron paramagnetic resonance (EPR) and adsorption studies shows that absorption of H2 and O2 leads to the destruction of paramagnetic centers. It is assumed that, upon irradiation, adsorption centers with electron and hole modes are formed on the surface of BeO.

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Section: Characterizationmentioning

confidence: 99%

“…Beryllium oxides (BeO) [1] are widely used molecules in the nuclear and chemical industries [2,3]. Recently, it was found that BeO functions as a catalyst with a developed surface, and its properties (catalytic) are influenced by external factors (e.g., temperature, radiation, etc.)…”

Section: Introductionmentioning

confidence: 99%

Radiation-stimulated adsorption processes on the surface of beryllium oxide

et al. 2022

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“…A more detailed analysis of beryllium poisoning can be found elsewhere (Wróblewska et al. 2021). The inner-wall erosion has been compared at JET during the ITER-like wall campaigns (Krat et al.…”

Section: Introductionmentioning

confidence: 99%

Simulation study of the influences of beryllium on the tokamak start-up process

Peng,

Qiu,

Zhao

et al. 2023

J. Plasma Phys.

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Tokamak start-up is strongly dependent on the state of the initial plasma formed during plasma breakdown. To acquire a better understanding of the process and to estimate the influence of the impurity of beryllium on the ohmic heating tokamak start-up process, one-dimensional particle-in-cell coupled with a Monte Carlo collision method has been developed. The main aim is to investigate the plasma performance under various amounts of beryllium with different discharge parameters. Tokamak breakdown with the impurity of beryllium in the ohmic heating strategy has been simulated. The simulation results show that with the impurity of beryllium, the increase of plasma density is suppressed compared with the case without beryllium. The breakdown time is delayed by the impurity. Moreover, the successful breakdown has a much higher requirement on discharge parameters with a low electric field operational scenario, since in the low electric field discharge the influence of beryllium impurity is greater. As the plasma density increases, the effect of beryllium impurity on plasma becomes more critical. It indicates that impurities cannot be neglected in the high plasma density.

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Extracting Beryllium from Beryllium Fluoride by Magnesiothermic Reduction

Tian,

Wang,

et al. 2024

Metall Mater Trans B

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A review and analysis of the state of the art on beryllium poisoning in research reactors

Cited by 10 publications

References 17 publications

Radiation-stimulated adsorption processes on the surface of beryllium oxide

Radiation-stimulated adsorption processes on the surface of beryllium oxide

Simulation study of the influences of beryllium on the tokamak start-up process

Extracting Beryllium from Beryllium Fluoride by Magnesiothermic Reduction

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