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The Mars Science Laboratory Organic Check Material |
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| Authors: | Pamela G Conrad Jennifer L Eigenbrode Max O Von?der Heydt Claus T Mogensen John Canham Dan N Harpold Joel Johnson Therese Errigo Daniel P Glavin Paul R Mahaffy |
| Institution: | 1. Planetary Environments Laboratory Code 699, NASA Goddard Space Flight Center, Bldg 33, Rm C105, 8800 Greenbelt Road, Greenbelt, MD, 20771, USA 2. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA 3. Grundfos Management AS, Bjerringbro, Denmark 4. ATK Space Systems Inc., Beltsville, MD, USA |
| Abstract: | Mars Science Laboratory’s Curiosity rover carries a set of five external verification standards in hermetically sealed containers that can be sampled as would be a Martian rock, by drilling and then portioning into the solid sample inlet of the Sample Analysis at Mars (SAM) suite. Each organic check material (OCM) canister contains a porous ceramic solid, which has been doped with a fluorinated hydrocarbon marker that can be detected by SAM. The purpose of the OCM is to serve as a verification tool for the organic cleanliness of those parts of the sample chain that cannot be cleaned other than by dilution, i.e., repeated sampling of Martian rock. SAM possesses internal calibrants for verification of both its performance and its internal cleanliness, and the OCM is not used for that purpose. Each OCM unit is designed for one use only, and the choice to do so will be made by the project science group (PSG). |
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