A Miniaturized Laser Instrument for Chemical and Mineralogical In-Situ Analysis on Planetary Surfaces

Details A Miniaturized Laser Instrument for Chemical and Mineralogical In-Situ Analysis on Planetary Surfaces A Miniaturized Laser Instrument for Chemical and Mineralogical In-Situ Analysis on Planetary Surfaces

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....5861b&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #5861

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Planetary in-situ analysis is going to become one of the most important tools for exploring the accessible celestial bodies. Chemical, mineralogical, structural, isotopic, and molecular information will provide stringent boundary conditions for the origin and evolution of these bodies and hence of the solar system. The past showed some unprecedented examples of operating in-situ analysis instruments and even rather complex instrument facilities are at present underway. Although their capabilities are remarkable, these "first generation" instruments still suffer from constraints in terms of size, mass, and operations for the accommodating systems. They pose restrictions in particular on the most recently projected explorative missions such as ESA's EXOMARS mission that aims at large operating radii of some kilometers or some tens of kilometers. Whereas the classical operational scenario was more or less stationary, the high degree of mobility calls for a new type of instrumentation, which can be characterized as follows: begin{itemize}
Short measurement duration: seconds instead of hours
High sensitivity, high repetition rate, high reproducibility
Low mass, size, and resource needs
High flexibility with respect to type, shape, and size of sample material
Robustness towards surface contamination Laser-Induced-Plasma-Spectrometry (LIPS) in combination with Raman-spectroscopy has the potential to meet these requirements and to enable in-situ elemental and mineralogical analyses with a new level of accuracy, performance and operational flexibility. This contribution describes the preliminary results in the definition process of such a new instrument for planetary in-situ exploration. It is based on the work carried out at institutes and research establishments in Germany and Austria. It relates furthermore to a definition study on a combined LIPS/Raman instrument carried out for the European Space Agency.

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