HIGH RESOLUTION CROSS SECTION MEASUREMENT OF OZONE IN THE WAVELENGTH REGION 240-350 nm
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Date
1984
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Publisher
Ohio State University
Abstract
Relative cross sections of the Hartley-Huggins bands of $O_{3}$ at 195 K have been obtained based on Hearn's values at several Hg-lines. Photoabsorption measurements have been carried out with a 6.65 m photoelectric scanning spectrometer equipped with a 2400 line $mm^{-1}$ grating and operated at an instrumental width (FWHM) of 0.003 nm. Fine structures in the cross section in the Huggins band are observed with shallow features of width 0.01-0.02 nm superposed on stronger broad bands, Absolute cross sections at 298 K, 228 K and 195 K have also been measured at 13 different wavelength points including the 5 ultraviolet Hg-line wavelengths used by Hearn. This work is supported by the NASA Upper Atmospheric Research Program under Grant NAG 5-144 to Harvard College.
Description
Author Institution: Harvard College Observatory, 60 Garden Street