Magnetic plasma expulsion

Phillips, R. E.; Ordonez, C. A.

doi:10.1063/1.5006887

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…An artificial phenomenon referred to as magnetic plasma expulsion may serve to keep plasma away from material structures that connect to the plasmaimmersed magnetic coils. 13,14 Research on the phenomenon using a particle-in-cell simulation was reported in Ref. 13.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic confinement of effectively unmagnetized plasma particles

Ordonez

2020

Physics of Plasmas

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A purely magnetic applied field may provide plasma confinement under conditions where the bulk of the plasma is effectively free of the applied magnetic field. The applied magnetic field surrounds the bulk of the plasma, and plasma particles that are incident on the applied magnetic field can be reflected back into the effectively unmagnetized region of plasma. The concept belongs to a class of magnetic plasma confinement approaches studied long ago, for which some experimental results indicated that classical (collision-based) cross-magnetic-field transport may occur. However, multiple magnetic coils are required to be immersed within the confined plasma, and rapid plasma loss may occur if material structures are present, which pass through the plasma (e.g., to hold the immersed coils in place). In the work reported, the concept is studied in combination with magnetic plasma expulsion [R. E. Phillips and C. A. Ordonez, Phys. Plasmas 25, 012508 ( 2018)], which would be employed to keep plasma away from material structures that pass through the plasma. A planar model is used for the study. A classical trajectory Monte Carlo simulation is carried out on particles that are independently incident on the applied magnetic field. With monoenergetic incident particles, the results indicate that the applied magnetic field can reflect all independently incident particles in certain regions of parameter space. Prospects for achieving three-dimensional magnetic confinement of an effectively unmagnetized plasma with a Maxwellian velocity distribution are discussed.

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Section: Introductionmentioning

confidence: 99%

“…13,14 Research on the phenomenon using a particle-in-cell simulation was reported in Ref. 13. The possibility of fueling a magnetically confined plasma with particle sources located inside of the plasma within a magnetic expulsion field has been studied with a classical trajectory Monte Carlo simulation.…”

Section: Introductionmentioning

confidence: 99%

Magnetic confinement of effectively unmagnetized plasma particles

Ordonez

2020

Physics of Plasmas

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Classical trajectory Monte Carlo simulation of plasma fueling using magnetic plasma expulsion

Martı́nez

Ordonez

2019

AIP Advances

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The possibility of fueling a magnetically confined plasma using particle sources located inside of the plasma is studied by computer simulation. Magnetic plasma expulsion [R. E. Phillips and C. A. Ordonez, Phys. Plasmas 25, 012508 (2018)] would serve to keep the magnetically confined plasma away from the particle sources without adversely affecting plasma confinement. The simulations show how charged particles can be injected into a plasma by using particle sources located directly between two current-carrying wires that create a magnetic expulsion field. Plasma fueling with the average energy of injected particles greater than the average energy of plasma particles may serve for heating the plasma. Also, plasma fueling with positive and negative particles injected at different rates may serve for changing the neutrality of the plasma. Conditions for plasma fueling are investigated using a classical trajectory Monte Carlo simulation. Two types of particle sources are considered, and the fraction of emitted particles that reach (and fuel) the magnetically confined plasma is evaluated for each.

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Magnetic plasma expulsion

Cited by 2 publications

References 35 publications

Magnetic confinement of effectively unmagnetized plasma particles

Magnetic confinement of effectively unmagnetized plasma particles

Classical trajectory Monte Carlo simulation of plasma fueling using magnetic plasma expulsion

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