Profiles of Stark-Broadened Balmer Lines in a Hydrogen Plasma
A stationary hydrogen plasma was generated in a high current stabilized arc and its temperature was determined spectroscopically from the diagnostics of the line and continuum radiation. Extensive measurements of the profiles of the Balmer lines H/sub BETA / and H/sub gamma / were made and show that...
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| Veröffentlicht in: | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, 1963-02, Vol.129 (3), p.1225-1232 |
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| container_end_page | 1232 |
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| container_issue | 3 |
| container_start_page | 1225 |
| container_title | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D |
| container_volume | 129 |
| creator | Wiese, W. L. Paquette, D. R. Solarski, J. E. |
| description | A stationary hydrogen plasma was generated in a high current stabilized arc and its temperature was determined spectroscopically from the diagnostics of the line and continuum radiation. Extensive measurements of the profiles of the Balmer lines H/sub BETA / and H/sub gamma / were made and show that recent improvements in the theory of Stark broadening describe the observed line shapes well. Electron densities determined from linewidth measurements are slightly higher than those derived from line intensity measurements. In the covered range of electron densities from l0/sup 16/--l0/sup 17/ cm/sup -3/ and temperatures around 10/sup 4/ deg K the difference amounts to about 25% for H/sub gamma / and 12% for H/sub BETA /, for which a refined Stark-broadening theory is available. In addition, the intensity distribution in the distant line wings of H/sub alpha / and H/sub BETA / was measured and compared with asymptotic formulas. Satisfactory agreement is obtained. (auth) |
| doi_str_mv | 10.1103/PhysRev.129.1225 |
| format | Article |
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In addition, the intensity distribution in the distant line wings of H/sub alpha / and H/sub BETA / was measured and compared with asymptotic formulas. Satisfactory agreement is obtained. (auth)</description><identifier>ISSN: 0031-899X</identifier><identifier>DOI: 10.1103/PhysRev.129.1225</identifier><language>eng</language><subject>BALMER LINES ; CURRENTS ; DENSITY ; ELECTRIC ARCS ; ELECTRIC FIELDS ; ELECTROMAGNETIC WAVES ; ELECTRONS ; EQUATIONS ; FREQUENCY ; HYDROGEN ; MEASURED VALUES ; PHYSICS ; PLASMA ; PLASMA DIAGNOSTICS ; QUANTITATIVE ANALYSIS ; SPECTRA ; SPECTRAL SHIFT ; SPECTROSCOPY ; STABILITY ; STARK EFFECT ; TEMPERATURE</subject><ispartof>Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. 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E.</creatorcontrib><creatorcontrib>National Bureau of Standards, Washington, D.C</creatorcontrib><title>Profiles of Stark-Broadened Balmer Lines in a Hydrogen Plasma</title><title>Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D</title><description>A stationary hydrogen plasma was generated in a high current stabilized arc and its temperature was determined spectroscopically from the diagnostics of the line and continuum radiation. Extensive measurements of the profiles of the Balmer lines H/sub BETA / and H/sub gamma / were made and show that recent improvements in the theory of Stark broadening describe the observed line shapes well. Electron densities determined from linewidth measurements are slightly higher than those derived from line intensity measurements. In the covered range of electron densities from l0/sup 16/--l0/sup 17/ cm/sup -3/ and temperatures around 10/sup 4/ deg K the difference amounts to about 25% for H/sub gamma / and 12% for H/sub BETA /, for which a refined Stark-broadening theory is available. In addition, the intensity distribution in the distant line wings of H/sub alpha / and H/sub BETA / was measured and compared with asymptotic formulas. Satisfactory agreement is obtained. 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D</jtitle><date>1963-02-01</date><risdate>1963</risdate><volume>129</volume><issue>3</issue><spage>1225</spage><epage>1232</epage><pages>1225-1232</pages><issn>0031-899X</issn><abstract>A stationary hydrogen plasma was generated in a high current stabilized arc and its temperature was determined spectroscopically from the diagnostics of the line and continuum radiation. Extensive measurements of the profiles of the Balmer lines H/sub BETA / and H/sub gamma / were made and show that recent improvements in the theory of Stark broadening describe the observed line shapes well. Electron densities determined from linewidth measurements are slightly higher than those derived from line intensity measurements. In the covered range of electron densities from l0/sup 16/--l0/sup 17/ cm/sup -3/ and temperatures around 10/sup 4/ deg K the difference amounts to about 25% for H/sub gamma / and 12% for H/sub BETA /, for which a refined Stark-broadening theory is available. In addition, the intensity distribution in the distant line wings of H/sub alpha / and H/sub BETA / was measured and compared with asymptotic formulas. Satisfactory agreement is obtained. (auth)</abstract><doi>10.1103/PhysRev.129.1225</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0031-899X |
| ispartof | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, 1963-02, Vol.129 (3), p.1225-1232 |
| issn | 0031-899X |
| language | eng |
| recordid | cdi_crossref_primary_10_1103_PhysRev_129_1225 |
| source | American Physical Society Journals |
| subjects | BALMER LINES CURRENTS DENSITY ELECTRIC ARCS ELECTRIC FIELDS ELECTROMAGNETIC WAVES ELECTRONS EQUATIONS FREQUENCY HYDROGEN MEASURED VALUES PHYSICS PLASMA PLASMA DIAGNOSTICS QUANTITATIVE ANALYSIS SPECTRA SPECTRAL SHIFT SPECTROSCOPY STABILITY STARK EFFECT TEMPERATURE |
| title | Profiles of Stark-Broadened Balmer Lines in a Hydrogen Plasma |
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