title: The Mars oxidant experiment (MOx) for Mars '96.
abstract: The MOx instrument was developed to characterize the reactive nature of the martian soil. The objectives of MOx were: (1) to measure the rate of degradation of organics in the martian environment; (2) to determine if the reactions seen by the Viking biology experiments were caused by a soil oxidant and measure the reactivity of the soil and atmosphere: (3) to monitor the degradation, when exposed to the martian environment, of materials of potential use in future missions; and, finally, (4) to develop technologies and approaches that can be part of future soil analysis instrumentation. The basic approach taken in the MOx instrument was to place a variety of materials composed as thin films in contact with the soil and monitor the physical and chemical changes that result. The optical reflectance of the thin films was the primary sensing-mode. Thin films of organic materials, metals, and semiconductors were prepared. Laboratory simulations demonstrated the response of thin films to active oxidants.
authors.affiliation: Space Science Division, NASA Ames Research Center, Moffett Field, CA 94035, USA.
authors.forename: C P
authors.initials: CP
authors.lastname: McKay
authors.forename: F J
authors.initials: FJ
authors.lastname: Grunthaner
authors.forename: A L
authors.initials: AL
authors.lastname: Lane
authors.forename: M
authors.initials: M
authors.lastname: Herring
authors.forename: R K
authors.initials: RK
authors.lastname: Bartman
authors.forename: A
authors.initials: A
authors.lastname: Ksendzov
authors.forename: C M
authors.initials: CM
authors.lastname: Manning
authors.forename: J L
authors.initials: JL
authors.lastname: Lamb
authors.forename: R M
authors.initials: RM
authors.lastname: Williams
authors.forename: A J
authors.initials: AJ
authors.lastname: Ricco
authors.forename: M A
authors.initials: MA
authors.lastname: Butler
authors.forename: B C
authors.initials: BC
authors.lastname: Murray
authors.forename: R C
authors.initials: RC
authors.lastname: Quinn
authors.forename: A P
authors.initials: AP
authors.lastname: Zent
authors.forename: H P
authors.initials: HP
authors.lastname: Klein
authors.forename: G V
authors.initials: GV
authors.lastname: Levin
mesh_terms: D004577:Electron Probe Microanalysis; D018559:Exobiology / Q000295:instrumentation*; D006813:Humidity; D018535:Mars; D019110:Meteoroids; D009930:Organic Chemicals; D016877:Oxidants / Q000032:analysis / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D010777:Photochemistry; D012987:Soil / Q000032:analysis*; D013026:Space Flight / Q000295:instrumentation*
chemical_list: D009930:Organic Chemicals; D016877:Oxidants; D012987:Soil; D010100:Oxygen