A theoretical treatment of the line-intensity jump in a decaying argon-arc plasma

Shindo, Haruo; Imazu, Shingo; Inaba, Tsuginori

doi:10.1016/0022-4073(81)90053-4

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…Here C denotes collision-induced transitions (quenching) and S is the coefficient for collisional ionization. α is the coefficient for three-body recombination, which is linked to S and G via the principle of detailed balancing [44]:…”

Section: Relaxation In Lte and Plte Plasmasmentioning

confidence: 99%

“…According to [44] we describe the temporal change in the population density of an excited Ar I level n |ν 0 by means of rate equations:…”

Section: Relaxation In Lte and Plte Plasmasmentioning

confidence: 99%

“…α is the coefficient for three-body recombination, which is linked to S and G via the principle of detailed balancing [44]:…”

Section: Relaxation In Lte and Plte Plasmasmentioning

confidence: 99%

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A spatially resolved relaxation method for pLTE plasma diagnostics in free-burning arcs

Kühn

Kock

2006

J. Phys. D: Appl. Phys.

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We report on a relaxation method to determine the electron-to-gas temperature ratio in the near-cathode region of a low-current free-burning arc operated in argon under atmospheric pressure. We used an intensified CCD camera to record the relaxation process after a fast power-interruption of the discharge with a time resolution better than 1 µs. For the CCD images we applied an ABEL inversion procedure yielding 3D information about the temperature ratio β := T e /T g with a spatial resolution of 50 µm. We deduced spatially resolved values of β from the relaxation experiment using independently measured values of T e and n e , so we could determine all free parameters in the partial LTE model.

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Section: Relaxation In Lte and Plte Plasmasmentioning

confidence: 99%

“…According to [44] we describe the temporal change in the population density of an excited Ar I level n |ν 0 by means of rate equations:…”

Section: Relaxation In Lte and Plte Plasmasmentioning

confidence: 99%

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A spatially resolved relaxation method for pLTE plasma diagnostics in free-burning arcs

Kühn

Kock

2006

J. Phys. D: Appl. Phys.

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“…1 must be corrected to: [8,9] ln It is presumed that the current interruption does not change the temperature of the gas and the concentration of electrons, thus the only effect being that the temperature of the electrons falls down to the level of the gas temperature.…”

mentioning

confidence: 99%

A Power Interruption Technique for Determining the Difference Between Electron and Gas Temperatures in the Argon d.c. Arc Supplied with Aqueous Aerosol

Kuzmanović

Antic‐Jovanović

Stoiljković

et al. 2003

Spectroscopy Letters

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The difference between electron and gas temperatures in a low current U-shaped d.c. arc with aqueous aerosol supply was studied using a power interruption technique. Monitoring of the temporal evolution of recombination continuum after power switch-off revealed that it was necessary to do a correction of the measured values due to a change in electron concentration. It was shown that the plasma studied was a two temperature type and that the temperature difference ranges from 1850 K to 600 K for arc currents from 3 to 10.5 A, respectively. A comparison with literature results for pure argon arc plasma shows that aerosol introduction reduces the temperature difference.

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Analyte excitation in the inductively coupled plasma studied by power modulation

Olesik

Bradley

1987

Spectrochimica Acta Part B: Atomic Spectroscopy

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A theoretical treatment of the line-intensity jump in a decaying argon-arc plasma

Cited by 8 publications

References 6 publications

A spatially resolved relaxation method for pLTE plasma diagnostics in free-burning arcs

A spatially resolved relaxation method for pLTE plasma diagnostics in free-burning arcs

A Power Interruption Technique for Determining the Difference Between Electron and Gas Temperatures in the Argon d.c. Arc Supplied with Aqueous Aerosol

Analyte excitation in the inductively coupled plasma studied by power modulation

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