Electrostatic Potential Gradients in a Penning Discharge

Salz, F.; Meyerand, R.G.; Lary, E. C.; Walch, A.P.

doi:10.1103/physrevlett.6.523

Cited by 21 publications

(2 citation statements)

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“…The plasma of the separated substances is generated in the first source. The background plasma necessary to create a radial electric field in the plasma volume [44] is generated in the second one. This field entrains the ions of the separated substance and transports them across the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Plasma mass separation in configuration with potential well

Liziakin¹,

Антонов²,

Smirnov³

et al. 2021

J. Phys. D: Appl. Phys.

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The details of the charged particle separation by mass in the configuration with axial magnetic and radial electric fields are studied. The radial electric field, oriented to the discharge axis, is induced in a background reflex discharge with a hot cathode (−550 V, 8–14 A). The plasma source is based on a hot cathode arc discharge with independent metal vapor injection (18–21 V, 30 A) was situated at 18 cm from the axis. It was shown that the separated Ag + Pb mixture is transported across the magnetic field under the background discharge electric field. Effective separation is possible in such a system, while the separation coefficient increases from 4.9 to 6.2–8.4 when the mixture injection point is moved away from the background discharge axis from 18 to 23 cm. The effect of mixture injection on the plasma potential distribution is examined. It was shown that the presence of a plasma source of separated substances can cause a local (1–2 cm) distortion of the background plasma potential profile. Such distortion, as well as fluctuations of the background plasma potential, can significantly affect the width of the deposited spots of separated substances.

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Section: Introductionmentioning

confidence: 99%

Plasma mass separation in configuration with potential well

Liziakin¹,

Антонов²,

Smirnov³

et al. 2021

J. Phys. D: Appl. Phys.

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show abstract

“…A reflex discharge with a thermionic element made of LaB 6 served as a background discharge. Its main task was to create a radial electric field in the plasma [35,36]. In this case, the end electrodes create plasma and a potential distribution in it.…”

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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Stationary efflux into a vacuum by a dual-temperature fully ionized plasma

Litvinov¹

1974

J Appl Mech Tech Phys

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Electrostatic Potential Gradients in a Penning Discharge

Cited by 21 publications

References 1 publication

Plasma mass separation in configuration with potential well

Plasma mass separation in configuration with potential well

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

Stationary efflux into a vacuum by a dual-temperature fully ionized plasma

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