1994
DOI: 10.1088/0022-3727/27/2/014
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Determination of axial thermal plasma temperatures without Abel inversion

Abstract: This paper presents an approximate formula for the determination of local axis temperatures of an inhomogeneous, axisymmetric, optically thin, local thermodynamic equilibrium plasma column without using the Abel inversion technique. The proposed method is straightforward and is based on recording the spatially integrated radiances of spectral lines. The formula is useful for high gradients thermal plasma columns of the type found in DC electric arcs or plasma jets of gaussian shaped temperature profile. The fo… Show more

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Cited by 56 publications
(39 citation statements)
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“…It should be mentioned that a method proposed in ref. [43] to calculate axial plasma temperatures without Abel inversion was also employed. However, the results show that the axial temperature was approx.…”
Section: Concentration Profiles Of Ar and Hementioning
confidence: 99%
“…It should be mentioned that a method proposed in ref. [43] to calculate axial plasma temperatures without Abel inversion was also employed. However, the results show that the axial temperature was approx.…”
Section: Concentration Profiles Of Ar and Hementioning
confidence: 99%
“…Another that can be applied is the intensity of radiation emitted by some spectral lines. The Electronic Temperature can be calculated with different techniques, one is the relative intensity of spectral lines, of the transition from the level m to r of one line and from j to i of the other line, given by Equation 1 [23]. …”
Section: Spectroscopymentioning
confidence: 99%
“…Ou seja, as temperaturas dos elétrons e das partículas pesadas são similares. (6) A temperatura dos elétrons é estimada pelo uso da razão de intensidades relativas de um par de linhas de emissão (subíndices 1 e 2 na Equação 1) do mesmo elemento químico, como proposto por Marotta, (7) que leva em conta a diferente distribuição de densidade ao longo da coluna de soldagem. …”
Section: Cálculo Da Temperatura Do Plasmaunclassified