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Record Details

Record 66 of 10772
Stark broadening of high-principal-quantum-number n-alpha lines of hydrogen.
External Online Source: doi:10.1103/PhysRevLett.30.944
Author and Affiliation:
Lasalle, T. R.(Maryland, University, College Park, Md.)
Nee, T.-J.
Griem, H. R.(Maryland, University, College Park, Md., United States)
Abstract: High n-alpha lines (transitions n + 1 to n) with quantum numbers n between 50 and 250 have been observed emanating from galactic H II regions where the electron density and temperature are about 1000/cu cm and 1 eV, respectively. High n-alpha lines have not previously been seen in the laboratory where fairly homogeneous plasmas may be produced and relatively precise measurements of electron densities and temperatures can be made. The present work describes experiments where the first members of the hydrogen line series with lower states n = 10, 11, 12, and 13 have been detected in a laboratory plasma. The width of the 12-alpha line at 88.7 microns could be measured and was consistent with calculated broadening from elastic electron collisions and quasi-static ion effects.
Publication Date: May 14, 1973
Document ID:
19730045750
(Acquired Dec 04, 1995)
Accession Number: 73A30552
Subject Category: PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
Document Type: Journal Article
Publication Information: Physical Review Letters; 30; May 14
Publisher Information: United States
Financial Sponsor: NASA; United States
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ELECTRON TRANSITIONS; H ALPHA LINE; HYDROGEN IONS; INTERSTELLAR GAS; SPECTRAL LINE WIDTH; STARK EFFECT; ELASTIC SCATTERING; ELECTRON SCATTERING; H II REGIONS; PLASMA PHYSICS; QUANTUM NUMBERS
Imprint And Other Notes: Physical Review Letters, vol. 30, May 14, 1973, p. 944-948. NASA-supported research.
Miscellaneous Notes: 1973, p. 944-948. NASA-supported research
Availability Source: Other Sources
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