Design and study of an enhanced filament ion source

Ghadikolaee, Mohammad Reza Babapour; Fateh, Behrooz; Ghadikolaee, Ebad Talebi

doi:10.1016/j.vacuum.2011.03.028

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…The knowledge of primary electron trajectories in this region helps in understanding and predicting various discharge characteristics. Three dimensional (3D) computer simulation techniques have been developed for tracking the primary electrons and applied to numerous applications [6][7][8][9]. The influence of different magnetic fields on plasma discharge has been studied by tracing the primary electron trajectories near the filament.…”

Section: Introductionmentioning

confidence: 99%

Self Consistently Generated Charge Cylinder in BETA Device

Kaur¹,

Sree²,

Mattoo³

2012

JMP

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This paper presents a study on near cathode space charge region in BETA (Basic Experiments in Toroidal Assembly), a toroidal plasma device with purely toroidal magnetic field. A charge cylinder has been found to be embedded in the plasma center corresponding to the hot filament cathode location in poloidal cross section. This charge cylinder has been created by the primary electrons emitted from the filament surface, which in turn, leads to the formation of a potential well in the core plasma. We have proposed a model, which shows that a tiny fraction of injected energetic electrons is sufficient to sustain the observed potential well. We have examined the equilibrium of the charge cylinder in poloidal cross-section and found that it exhibits equilibrium configuration by forming circulation pattern of primary electrons. The circulation pattern is formed by vertical drift due to toroidal magnetic field and self-consistent poloidal <i>E×B</i> drift. We have concluded that the self-consistency is in adjusting the poloidal drift to the vertical drift of the trapped primary electrons

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Section: Introductionmentioning

confidence: 99%

Self Consistently Generated Charge Cylinder in BETA Device

Kaur¹,

Sree²,

Mattoo³

2012

JMP

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Millimeter-Scale PIG Source for Miniature Mass Spectrometers

Ghadikolaee

2012

J Fusion Energ

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Analysis of Effects of the Arc Voltage on Arc Discharges in a Cathode Ion Source of Neutral Beam Injector

Chen

Xie

2016

Plasma Sci. Technol.

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A hot cathode bucket ion source is used for the EAST (experimental advanced superconducting tokamak) neutral beam injector. The thermal electrons emitted from the surface of the cathode are extracted and accelerated by the electric field formed by the arc voltage, which is applied between the arc chamber of the ion source and the cathode. This paper analyzes the effects of arc voltage on the arc discharge in a hot cathode high current ion source.

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Design and study of an enhanced filament ion source

Cited by 3 publications

References 8 publications

Self Consistently Generated Charge Cylinder in BETA Device

Self Consistently Generated Charge Cylinder in BETA Device

Millimeter-Scale PIG Source for Miniature Mass Spectrometers

Analysis of Effects of the Arc Voltage on Arc Discharges in a Cathode Ion Source of Neutral Beam Injector

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