dorsal/arxiv
View SchemaUV continuum emission and diagnostics of hydrogen-containing non-equilibrium plasmas
| Authors | M. Käning, B. P. Lavrov, A. S. Melnikov, J. Röpcke |
|---|---|
| Categories | |
| ArXiv ID | physics/9804008 |
| URL | https://arxiv.org/abs/physics/9804008 |
| DOI | 10.1103/PhysRevE.59.3526 |
| Journal | Phys. Rev. E, 59 1999 3526-3543 |
Abstract
For the first time the emission of the radiative dissociation continuum of the hydrogen molecule ($a^{3}\Sigma_{g}^{+} \to b^{3}\Sigma_{u}^{+}$ electronic transition) is proposed to be used as a source of information for the spectroscopic diagnostics of non-equilibrium plasmas. The detailed analysis of excitation-deactivation kinetics, rate constants of various collisional and radiative transitions and fitting procedures made it possible to develop two new methods of diagnostics of: (1) the ground $X^{1}\Sigma_{g}^{+}$ state vibrational temperature $T_{\text{vib}}$ from the relative intensity distribution, and (2) the rate of electron impact dissociation $(d[\mbox{H$_{2}$}]/dt)_{\text{diss}}$ from the absolute intensity of the continuum. A known method of determination of $T_{\text{vib}}$ from relative intensities of Fulcher-$\alpha$ bands was seriously corrected and simplified due to the revision of $d \to a$ transition probabilities and cross sections of $d \gets X$ electron impact excitation. General considerations are illustrated with examples of experiments in pure hydrogen capillary-arc and H$_{2}$+Ar microwave discharges.
{
"annotation_id": "154ba365-9cfe-4ed2-b951-ca0fad52133d",
"date_created": "2026-03-02T18:01:21.756000Z",
"date_modified": "2026-03-02T18:01:21.756000Z",
"file_hash": "e59557d95385a9b2c9804a1dc15a89e36bb181e48eb797a4b1a057c375245118",
"private": false,
"record": {
"abstract": "For the first time the emission of the radiative dissociation continuum of\nthe hydrogen molecule ($a^{3}\\Sigma_{g}^{+} \\to b^{3}\\Sigma_{u}^{+}$ electronic\ntransition) is proposed to be used as a source of information for the\nspectroscopic diagnostics of non-equilibrium plasmas. The detailed analysis of\nexcitation-deactivation kinetics, rate constants of various collisional and\nradiative transitions and fitting procedures made it possible to develop two\nnew methods of diagnostics of: (1) the ground $X^{1}\\Sigma_{g}^{+}$ state\nvibrational temperature $T_{\\text{vib}}$ from the relative intensity\ndistribution, and (2) the rate of electron impact dissociation\n$(d[\\mbox{H$_{2}$}]/dt)_{\\text{diss}}$ from the absolute intensity of the\ncontinuum. A known method of determination of $T_{\\text{vib}}$ from relative\nintensities of Fulcher-$\\alpha$ bands was seriously corrected and simplified\ndue to the revision of $d \\to a$ transition probabilities and cross sections of\n$d \\gets X$ electron impact excitation. General considerations are illustrated\nwith examples of experiments in pure hydrogen capillary-arc and H$_{2}$+Ar\nmicrowave discharges.",
"arxiv_id": "physics/9804008",
"authors": [
"M. K\u00e4ning",
"B. P. Lavrov",
"A. S. Melnikov",
"J. R\u00f6pcke"
],
"categories": [
"physics.plasm-ph"
],
"doi": "10.1103/PhysRevE.59.3526",
"journal_ref": "Phys. Rev. E, 59 1999 3526-3543",
"title": "UV continuum emission and diagnostics of hydrogen-containing non-equilibrium plasmas",
"url": "https://arxiv.org/abs/physics/9804008"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8c7dcd1d-57a4-4600-b5db-df4ae74951cb",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}