Ultraviolet-absorption photometer for measurement of ozone on a rocket-boosted payload

Physics – Optics

Scientific paper

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Absorption, Atmospheric And Ocean Optics, Atmospheric Transmittance, Detectors, Instrumentation: Measurement: And Metrology, Ozone, Photometry, Spectroscopy, Ultraviolet

Scientific paper

We developed a rocket payload to perform in situ measurements of atmospheric ozone at the University of Houston. The ozone detector is a dual-beam UV-absorption photometer that uses the 253.7-nm radiation from a low-pressure mercury-vapor lamp to illuminate two identical absorption chambers. We describe the design features and the operation of the instrument. The fundamental resolution of the photometer is shown to be 2.7 10 15 molecules m 3 . We present the ozone profile measured during parachute descent following boosted ascent to 60 km by a Nike Orion rocket. The uncertainty in the measurement of this ozone profile is estimated to be 8.2 .

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