2023-06-212023-06-212023-07-16ICES-2023-465https://hdl.handle.net/2346/94806Murray Darrach, Jet Propulsion Laboratory(JPL), USAByunghoon Bae, Jet Propulsion Laboratory(JPL), USADejian Fu, Jet Propulsion Laboratory(JPL), USAVachik Garkanian, Jet Propulsion Laboratory(JPL), USAMargie Homer, Jet Propulsion Laboratory(JPL), USARichard Kidd, Jet Propulsion Laboratory(JPL), USACecile Jung-Kubiak, Jet Propulsion Laboratory(JPL), USAHannes Kraus, Jet Propulsion Laboratory(JPL), USAFrank Maiwald, Jet Propulsion Laboratory(JPL), USAStojan Madzunkov, Jet Propulsion Laboratory(JPL), USACharles Malone, Jet Propulsion Laboratory(JPL), USADragan Nikolic, Jet Propulsion Laboratory(JPL), USAMina Rais-Zadeh, Jet Propulsion Laboratory(JPL), USAJurij Simcic, Jet Propulsion Laboratory(JPL), USATina Tillmans, Jet Propulsion Laboratory(JPL), USAFang Zhong, Jet Propulsion Laboratory(JPL), USAICES205: Advanced Life Support Sensor and Control TechnologyThe 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.The Spacecraft Atmosphere Monitor (S.A.M.) is a miniaturized gas chromatograph mass spectrometer (GC/MS) instrument for monitoring the cabin atmosphere for human spaceflight missions. The first Technology Demonstration Unit (TDU1) operated successfully aboard the International Space Station (ISS) from August 2019 to July 2021. The second unit, TDU2, will be delivered to ISS in 2023. While on-station, TDU2 will continuously monitor the major atmospheric constituents and, on command, perform analysis of the cabin atmosphere for trace organic volatiles. The S.A.M. TDU2 uses the same quadrupole ion trap mass spectrometer (QITMS) sensor as in TDU1, but includes a MEMS preconcentrator, gas chromatograph, and microvalve system. Its miniature, ruggedized form factor allows the S.A.M. to be aisle-deployed to monitor the cabin in different locations and during activities such as exercise and sleep.application/pdfengmass spectrometergas chromatographair qualityPresentations