The dependence of pressure on the magnetic field in an arc surrounded by cold gas

Rem, J.B.

doi:10.1088/0029-5515/10/1/012

Cited by 13 publications

(1 citation statement)

References 4 publications

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“…At a hypothetical point where the temperature of neutrals gets comparable to that of the core owing to successive ion-neutral collisions, enthalpy reaches a critical value beyond which ionization has a noticeable effect on the plasma equilibrium. The resulting partially ionized boundary layer then effectively separates the plasma from the influx of impinging neutrals by balancing the pressure gradient4.…”

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Tunable synthesis and in situ growth of silicon-carbon mesostructures using impermeable plasma

Yaghoubi

Mélinon

2013

Sci Rep

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In recent years, plasma-assisted synthesis has been extensively used in large scale production of functional nano- and micro-scale materials for numerous applications in optoelectronics, photonics, plasmonics, magnetism and drug delivery, however systematic formation of these minuscule structures has remained a challenge. Here we demonstrate a new method to closely manipulate mesostructures in terms of size, composition and morphology by controlling permeability at the boundaries of an impermeable plasma surrounded by a blanket of neutrals. In situ and rapid growth of thin films in the core region due to ion screening is among other benefits of our method. Similarly we can take advantage of exceptional properties of plasma to control the morphology of the as deposited nanostructures. Probing the plasma at boundaries by means of observing the nanostructures, further provides interesting insights into the behaviour of gas-insulated plasmas with possible implications on efficacy of viscous heating and non-magnetic confinement.

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Tunable synthesis and in situ growth of silicon-carbon mesostructures using impermeable plasma

Yaghoubi

Mélinon

2013

Sci Rep

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On the Stability of Ballooning Modes in the Boundary Layers of a Gas Insulated Plasma

Ohlsson

1979

Contrib Plasma Phys

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I n order to fulfill power density requirements in future steady-state fusion reactors the ion density in central parts must be of the order 1020-10z1 m-3. I n such systems high density neutral gas may surround the hot plasma, whether introduced on purpose or not, provided the neutral gas flux from the plasma is not continuously removed by external means. I n gas insulated plasmas large density and pressure gradients will arise close to the boundaries on account of plasma neutral gas interaction effects. I n this paper the stability of gravity driven ballooning modes in the boundary region is investigated. In particular, the coupling between plasma and neutral gas investigated in previous stability analysis is reconsidered. Also effects previously neglected for example the Nernst effect is taken into account.

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Plasma-neutral gas boundary layers

Lehnert

1975

Nuclear Instruments and Methods

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The dependence of pressure on the magnetic field in an arc surrounded by cold gas

Cited by 13 publications

References 4 publications

Tunable synthesis and in situ growth of silicon-carbon mesostructures using impermeable plasma

Tunable synthesis and in situ growth of silicon-carbon mesostructures using impermeable plasma

On the Stability of Ballooning Modes in the Boundary Layers of a Gas Insulated Plasma

Plasma-neutral gas boundary layers

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