19 October 1994 Midcourse Space Experiment (MSX) ion mass spectrometer: measurement of contaminant and ambient ions
Author Affiliations +
The Midcourse Space Experiment (MSX) ion mass spectrometer (IMS) is a Bennett radio- frequency mass spectrometer designed to measure the concentration of contaminant and ambient ionospheric ions from 1 - 60 amu. The instrument is one of a suite of six onboard contamination instruments, which also includes a neutral mass spectrometer, pressure sensor, quartz crystal microbalance, krypton water vapor monitor, and particulate flashlamp experiment. The instrument is sensitive to an incoming ion flux on the order of 1 X 107 ions/cm2s, which corresponds to an ion concentration of approximately 10 ions/cm3 for ionospheric ions that move at a speed of approximately equals 8 km/s with respect to the satellite. The IMS instrument and calibration are described in the paper. The purpose of the IMS calibration is to determine the detection efficiency for ionospheric and contaminant species that the MSX satellite is likely to encounter.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert E. Erlandson, Robert E. Erlandson, Mark T. Boies, Mark T. Boies, O. Manuel Uy, O. Manuel Uy, J. M. Grebowsky, J. M. Grebowsky, Jack T. Coulson, Jack T. Coulson, } "Midcourse Space Experiment (MSX) ion mass spectrometer: measurement of contaminant and ambient ions", Proc. SPIE 2261, Optical System Contamination: Effects, Measurements, and Control IV, (19 October 1994); doi: 10.1117/12.190139; https://doi.org/10.1117/12.190139

Back to Top