Measurement of the ozone absorption cross-section at the 253.7 nm Mercury line

Details Measurement of the ozone absorption cross-section at the 253.7 nm Mercury line Measurement of the ozone absorption cross-section at the 253.7 nm Mercury line

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..671m&link_type=abstract

Geophysical Research Letters, Volume 13, Issue 7, p. 671-673

Physics

21

Scientific paper

The absorption cross-section of ozone at 253.7 nm is frequently used as a standard for the entire UV wavelength range. The presently accepted value is 1.147×10-17 cm2, known with an uncertainty of about 2%. The cross-section has been recently measured by simultaneously monitoring the ozone pressure, the impurities in the ozone gas, the gas temperature and the UV beam intensity. The cross-section at room temperature was found to be 1.137×10-17 cm2, having an uncertainty of +/-.7%. The improved accuracy will aid a number of ozone experiments including the in situ photometers and Solar Backscatter Ultraviolet instruments.

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