Oscillator strengths for atomic sulfur

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA095iA12p21313· OSTI ID:5268925

Doering, J P ^[1]

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1. Johns Hopkins Univ., Baltimore, MD (USA)

A new laboratory atomic sulfur beam source has been developed which has allowed the measurement of relative oscillator strengths for three prominent dipole-allowed SI transitions: 3p{sup 4} {sup 3}P {yields} 4s {sup 3}S{sup 0} (1814 {angstrom}), 3p{sup 4} {sup 3}P {yields} 4s{prime} {sup 3}D{sup 0} (1479 {angstrom}), and 3p{sup 4} {sup 3}P {yields} 3d {sup 3}D{sup 0} (1429 {angstrom}). The method of forward electron scattering was used. The oscillator strength ratios are found to be: f{sub 1479}/f{sub 1814} = 1.12 {plus minus} 0.06 and f{sub 1429}/f{sub 1814} = 1.69 {plus minus} 0.08. If f{sub 1814} is normalized to the National Bureau of Standards reference value of 0.12, then: f{sub 1479} = 0.134, f{sub 1429} = 0.202 (both {plus minus} 30%). These results are significant for the understanding of SI emissions observed from Io and the Io torus as well as from certain comets.

• OSTI ID: 5268925
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 95:A12; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
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74 ATOMIC AND MOLECULAR PHYSICS
CHEMICAL COMPOSITION
DATA
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
INFORMATION
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NUMERICAL DATA
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