Abstract
A new technique for measuring the variation of the absorption cross-section of ozone with temperature has been developed. This technique, based on the application of Clapeyron's law, is particularly precise. It has been tested in the Hartley band at the wavelength of the mercury line (λ=253.65 nm) where the absolute values of the cross-sections are used for calibration of relative data. The variation from 295 to 229 K determined in this experiment as Δσ=(−1.3±0.6)×10 −19 cm 2 is in good agreement with other data.
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