Engineering topics

Brannon, J. F., Jr.

Publications and source records attributed to Brannon, J. F., Jr..

2 records

NASA NTRS1992

Infrared absorption-coefficient data on SF6 applicable to atmospheric remote sensing

Spectral absorption coefficients, k(nu)/cm per atm, of SF6 have been measured in the central Q-branches of the nu(3)-fundamental at 947/cm at various temperature-pressure combinations representing tangent heights in solar-occultation experiments or layers in the atmosphere. The data obtained with the Doppler-limited spectral resolution (about 0.0001/cm) of a tunable-diode laser spectrometer are useful in the atmospheric remote sensing of this trace gas.

Varanasi, P.↗

NASA NTRS1992

Tunable diode laser measurements on the 951.7393/cm line of (C-12)2H4 at planetary atmospheric temperatures

The absolute intensity and the collision broadened half-widths of the 951.7393/cm line, which belongs to the nu7-fundamental band (C-12)2H4, at 152, 202, 252, and 294 K are presented using He, H2, and N2 as broadeners. The temperature dependence of the half-width is determined for line broadening by the planetary atmospheric gases He, H2, and N2.

Brannon, J. F., Jr.↗