Description and optimization of a wall-stabilized arc chamber

Brugeat, S.; Coitout, H.; Parizet, M.J.

doi:10.1063/1.1286307

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Experimental Set-up and Results1

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2004

2005

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Cited by 3 publications

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“…In our experiment, we used an Ar plasma generated by a cascade plasma arc generator (Hypertherm) [16]. The experimental conditions of the plasma torch are as follows: the nozzle diameter is 5 mm, the operating current 40 A, the applied voltage 70 V and the gas flow rate 3.6 g cm −3 .…”

Section: Experimental Set-up and Resultsmentioning

confidence: 99%

Reconstruction errors in Abel inversion

Paul

Andrews

Bose

et al. 2005

Plasma Devices and Operations

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A stable and reliable Abel inversion code is developed to obtain the radial profile of emissivity from chord integrated data, by expanding the radial emissivity in the form of a Zernike polynomial. The inversion is performed using the matrix inversion technique and employing the singular value decomposition method. The error in reconstruction is estimated using simulated data for different emissivity. The error is found to be less than 2% and the standard deviation is 7 × 10 −3 for a circularly symmetric plasma. The Abel inversion code is used to obtain the radial profile of the emissivity of an optically thin arc plasma.

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Section: Experimental Set-up and Resultsmentioning

confidence: 99%