Major Constituent Analyzer (MCA) Mass Spectrometer Operating Life Improvements

Event
International Conference On Environmental Systems
Authors Abstract
Content
The Major Constituent Analyzer (MCA) is a mass spectrometer system that measures the major constituents of the International Space Station (ISS) atmosphere. Experience has indicated that the operating life of the mass spectrometer is limited by the operating life of the ion pump, which maintains mass spectrometer vacuum. This paper summarizes the use of trend data from on orbit operations and ground testing to identify and understand the factors affecting ion pump life and to predict ion pump life on orbit. In addition, potential improvements currently under consideration to increase ion pump life, and therefore mass spectrometer life, are discussed.
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Details
DOI
https://doi.org/10.4271/2008-01-1966
Pages
8
Citation
Granahan, J., and Thoresen, S., "Major Constituent Analyzer (MCA) Mass Spectrometer Operating Life Improvements," SAE Int. J. Aerosp. 1(1):25-32, 2009, https://doi.org/10.4271/2008-01-1966.
Additional Details
Publisher
Published
Jun 29, 2008
Product Code
2008-01-1966
Content Type
Journal Article
Language
English