Accession Number : AD0272606

Title :   ABSORPTION COEFFICIENTS OF 02 IN THE VACUUM ULTRAVIOLET

Corporate Author : HAWAII INST OF GEOPHYSICS HONOLULU

Personal Author(s) : MATSUNAGA,F.M. ; WATANABE,K.

Report Date : DEC 1961

Pagination or Media Count : 1

Abstract : With a resolution of 0.2 A the absorption coefficients of O2 wereobtained for about 600 wavelengths in the region 840-1100 A and also at 584.3 A. This method resolved band structures which were not detected by previous photoelectric measurements and at many wavelengths where comparison could be made the absorption coefficients agreed closely with the earlier data.Also with this improved resolution a pressure effect was observed for the pre-ionized H, H', M and M' bands. Continua due to photodissociation and photoionization were observed in the absorption spectrum. Vibrational levels of the ion were inferred from the absorption spectrum. Several absorption bands seem to form a limit at 1026.5 A, the position of the ionization potential obtained by a photo-ionization method. (Author)

Descriptors :   *ABSORPTION, *OXYGEN, *ULTRAVIOLET RADIATION, DISCHARGE TUBES, EXPERIMENTAL DATA, GAS IONIZATION, MONOCHROMATIC LIGHT, PHOTOELECTRIC FUZES, PHOTOMULTIPLIER TUBES, TABLES(DATA), VACUUM APPARATUS

Distribution Statement : APPROVED FOR PUBLIC RELEASE