Further laboratory studies and stratospheric flight of a mass spectrometer beam system

Details Further laboratory studies and stratospheric flight of a mass spectrometer beam system Further laboratory studies and stratospheric flight of a mass spectrometer beam system

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rsci...50.1612m&link_type=abstract

Review of Scientific Instruments, vol. 50, Dec. 1979, p. 1612-1617.

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4

Atmospheric Composition, Balloon-Borne Instruments, Gas Spectroscopy, Mass Spectroscopy, Stratosphere, Argon Isotopes, Balloon Flight, Gas Mixtures, Oxygen 17, Ozonometry, Particle Size Distribution, Vertical Distribution

Scientific paper

A gas expansion system combined with a mass spectrometer has been tested and flown successfully in the stratosphere. Through a sequence of orifices and high speed pumping, gas particles were formed into a molecular beam and analyzed by a sensitive mass spectrometer. During two balloon flights, vertical profiles of all major atmospheric constituents as well as O3, CO2, H2O and others were obtained. Gases such as AR38 and O16;O17 provided in-flight calibration standards. The sensitivity of the system was such that gases with mixing ratios of 10 ppb at an ambient pressure of about 10 mbar were detectable.

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