Diffuse arc discharge with a hot cathode in a magnetic field as a plasma source of lead and silver mixture for the problem of spent nuclear fuel reprocessing

Антонов, Н. Н.; Usmanov, R. A.; Gavrikov, A. V.; Smirnov, V. P.

doi:10.1088/1742-6596/1147/1/012133

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Pb has lower saturated vapor pressure than Ag. It was previously shown that at relatively low temperature of evaporator, ∼1.5 kK, mostly Pb vapor gets into the discharge gap and plasma consists of Pb particles [19]. When the Pb in the evaporator runs, out we increase the temperature to ∼1.8 kK and evaporation of Ag starts, Ag replaces Pb in plasma flux.…”

Section: Experiments Arrangementmentioning

confidence: 91%

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Analysis of non-ionized substance losses in experiments on plasma mass separation

Usmanov¹,

Antonov²,

Gavrikov³

et al. 2022

Plasma Sci. Technol.

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Plasma mass separation requires a lot of diagnostic techniques that not only demonstrate the separation effect but also show the efficiency of the process. During the test experiments plasma flux to be separated may contain neutral particles that avoid the separation process due to their insensitivity to electromagnetic field. We present the diagnostics of the lost substance that way in experiments on plasma mass separation. Obtained data of the diagnostics helped to determine the law of particle evaporation from the plasma source. We showed that neutral flux is unable to distort the result of separation diagnostics. Presented approach can be used in experiments aimed at enhancing the separation effect and at achieving target productivity for industry applications.

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Section: Experiments Arrangementmentioning

confidence: 91%

“…An arc plasma source is located at a distance of 18 cm from the chamber axis. A mixture of silver (Ag) and lead (Pb) is used as the substance for separation in pilot experiments [19]. The source consists of thermionic cathode made of LaB 6 and molybdenum circular watercooled anode with a hole for plasma outflow.…”

Section: Experiments Arrangementmentioning

confidence: 99%

Analysis of non-ionized substance losses in experiments on plasma mass separation

Usmanov¹,

Antonov²,

Gavrikov³

et al. 2022

Plasma Sci. Technol.

Self Cite

View full text Add to dashboard Cite

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Simulation of ion flux of actinides and uranium fission products in the plasma separator with a potential well

et al. 2020

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This work is devoted to the development of a plasma mass separation method with a potential well for spent nuclear fuel reprocessing. The configuration of the separation chamber with an axial magnetic field up to 0.25 T and a radial electric field up to 3 kV/m is considered. Using numerical simulation, we study the ion flux motion with the same mass composition as the spent nuclear fuel injected along magnetic field lines. The effect of fields and initial injection parameters on the spatial separation of actinides from uranium fission products is investigated. The simulation of the ion flux motion is also performed taking into account elastic collisions of ions with background gas atoms. Elastic collision cross sections for U+, Pu+, Cs+, and Sr+ ions in helium and argon are obtained theoretically. We show that in argon, the separation is possible up to a pressure of the order of 1 mTorr, while in helium, it is possible to separate elements by mass groups in the collisional regime at pressures up to about 10 mTorr.

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On the Concept of Plasma Mass-Separation in Crossed E × B Fields with a Potential Well (a Review)

et al. 2022

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Diffuse arc discharge with a hot cathode in a magnetic field as a plasma source of lead and silver mixture for the problem of spent nuclear fuel reprocessing

Cited by 4 publications

References 11 publications

Analysis of non-ionized substance losses in experiments on plasma mass separation

Analysis of non-ionized substance losses in experiments on plasma mass separation

Simulation of ion flux of actinides and uranium fission products in the plasma separator with a potential well

On the Concept of Plasma Mass-Separation in Crossed E × B Fields with a Potential Well (a Review)

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