Stand-off planetary surface analysis using laser-induced breakdown spectroscopy and laser-induced plasma ion mass spectrometry

Details Stand-off planetary surface analysis using laser-induced breakdown spectroscopy and laser-induced plasma ion mass spectrometry Stand-off planetary surface analysis using laser-induced breakdown spectroscopy and laser-induced plasma ion mass spectrometry

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997isr2.meet...37w&link_type=abstract

In Situ Resource Utilization (ISRU II) Technical Interchange Meeting, p. 37

Mathematics

Logic

Mass Spectroscopy, Planetary Composition, Planetary Surfaces, Soil Sampling, Emission Spectra, Laser Spectroscopy, Mass Spectrometers, Extraterrestrial Resources, Surface Properties, Isotope Ratios

Scientific paper

Characterization of useable planetary materials will require high sampling throughput. Although remote observations from orbiting spacecraft provide spatially wide coverage, they do not, by themselves, provide sufficient information for materials utilization purposes. On the other hand, active rover-based in-situ analyses can provide detailed geological information but can be very time-consuming and limited in scope, as was recently demonstrated by the Mars Pathfinder Mission. The optimum configuration for detailed analysis with wide spatial coverage may be a stand-off technique. Stand-off techniques are being tested which utilize laser interrogation for elemental and isotopic analyses. We are simultaneously testing both emission spectroscopy, to measure characteristic wavelengths in the laser-induced spark, and a mass spectrometer to measure the mass of ions generated and accelerated by the spark. Material can be analyzed from within a radius of several tens of meters from the instrument platform. A relatively large area can thus be sampled from a simple lander without requiring a rover or sampling arms. On a rover, such an instrument would allow sampling of locations not otherwise accessible, such as on a steep ledge, and its versatility would reduce travel requirements for the rover.

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