Results of the Main Phase of Ion Separation in the Process of Plasma-Optical Mass Separation

Bardakov, V. M.; Ivanov, S. D.; Kazantsev, A. V.; Strokin, N. A.

doi:10.1088/1009-0630/17/10/09

Cited by 10 publications

(3 citation statements)

References 14 publications

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“…Among the objectives of the investigations is the generation of a multi-component ion beam. The device used for beam generation is a two-chamber plasma accelerator with an anodic layer, PAAL (with a cold cathode) [32]. The second PAAL chamber also serves as the azimuthator, which is represented by the region with an applied radial (transverse to the ion velocity) magnetic field (up to 0.5 T); when passing through it, the ions with different masses acquire different azimuthal velocities, i.e.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Anomalous acceleration of ions in a plasma accelerator with an anodic layer

Bardakov

Ivanov

Kazantsev

et al. 2018

Plasma Sci. Technol.

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In a plasma accelerator with an anodic layer (PAAL), we discovered experimentally the effect of 'super-acceleration' of the bulk of the ions to energies W exceeding the energy equivalent to the discharge voltage V d. The E×B discharge was ignited in an environment of atomic argon and helium and molecular nitrogen. Singly charged argon ions were accelerated most effectively in the case of the largest discharge currents and pressure P of the working gas. Helium ions with W>eV d (e being the electron charge) were only recorded at maximum pressures. Molecular nitrogen was not accelerated to energies W>eV d. Anomalous acceleration is realized in the range of radial magnetic fields on the anode 2.8×10-2 B rA 4×10-2 T. It was also found analytically that the cathode of the accelerator can receive anomalously accelerated ions. In this case, the value of the potential in the anodic layer becomes higher than the anode potential, and the anode current exceeds some critical value. Numerical modeling in terms of the developed theory showed qualitative agreement between modeling data and measurements.

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Section: Formulation Of the Problemmentioning

confidence: 99%

Anomalous acceleration of ions in a plasma accelerator with an anodic layer

Bardakov

Ivanov

Kazantsev

et al. 2018

Plasma Sci. Technol.

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show abstract

“…Additionally, an intermediate range of masses (m ∼ m * ) can be collected axially by choosing the device length appropriately 72 . Experiments on this device using a mixture of three gases revealed that the flow becomes positively charged when going through the azimuthator, which in turn affects the ion dynamics and separation 73 . This observation was recently explained through analytical models for electron and ion flows in the azimuthator 74 .…”

Section: B Crossed-field In Non-magnetized Ion Regimementioning

confidence: 99%

ExB flows for high-throughput plasma mass separation

Gueroult¹,

Zweben²,

Fisch³

et al. 2018

Preprint

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High-throughput plasma separation based on atomic mass holds the promise for offering unique solutions to a variety of high-impact societal applications. Through the mass differential effects they exhibit, crossed-field configurations can in principle be exploited in various ways to separate ions based on atomic mass. Yet, the practicality of these concepts is conditioned upon the ability to drive suitable crossed-field flows for plasma parameters compatible with high-throughput operation. Limited current predictive capabilities have not yet made it possible to confirm this possibility. Yet, past experimental results suggest that end-electrodes biasing may be effective, at least for certain electric field values. A better understanding of cross-field conductivity is needed to confirm these results and confirm the potential of crossed-field configurations for high-throughput separation.

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“…There are three possible applications of low-resolution plasma mass separation: (a) RW disposal [21,22]; (b) SNF reprocessing [23][24][25][26][27]; and (c) rare earth elements recycling [28]. Previously, several experimental efforts were made aimed at the plasma separation of gases [29][30][31] and metals [32,33] in charge-neutral plasmas.…”

mentioning

confidence: 99%

Experimental demonstration of plasma mass separation in a configuration with a potential well and crossed electric and magnetic fields

Liziakin

Антонов

Usmanov

et al. 2021

Plasma Phys. Control. Fusion

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One of the alternative ‘dry’ methods for spent nuclear fuel (SNF) reprocessing is the plasma mass separation technique. This letter describes the first experiments that demonstrate the fundamental feasibility of a plasma mass separation approach in crossed electric and magnetic fields in collisionless mode. The Ag + Pb mixture was used to simulate the heavy (>235 u) and light (<150 u) components of the SNF. The Ag + Pb mixture was transformed into a plasma jet and ejected along the magnetic field. The action of the electric field caused the deposition of mixture components on the substrate in the form of localized spots. The estimated separation factor was of 35.

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Results of the Main Phase of Ion Separation in the Process of Plasma-Optical Mass Separation

Cited by 10 publications

References 14 publications

Anomalous acceleration of ions in a plasma accelerator with an anodic layer

Anomalous acceleration of ions in a plasma accelerator with an anodic layer

ExB flows for high-throughput plasma mass separation

Experimental demonstration of plasma mass separation in a configuration with a potential well and crossed electric and magnetic fields

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