The mini-CIDEX GC/IMS: Analysis of cometary ice and dust

Details The mini-CIDEX GC/IMS: Analysis of cometary ice and dust The mini-CIDEX GC/IMS: Analysis of cometary ice and dust

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995imsp.work...57k&link_type=abstract

In NASA. Johnson Space Center, Third International Workshop on Ion Mobility Spectrometry p 57-65 (SEE N95-33265 12-25)

Astronomy and Astrophysics

Astrophysics

Astrophysics, Chemical Composition, Comet Nuclei, Cometary Atmospheres, Comets, Dust, Ice, Planetary Nebulae, Breadboard Models, Gas Spectroscopy, Ion Mobility Spectroscopy, Pyrolysis, X Ray Fluorescence

Scientific paper

Comets are recognized as among the most scientifically important objects in the solar system. They are presumed relics of the early primitive material in the solar nebula and are believed to have provided a general enrichment of volatiles to the inner solar system. The Cometary Coma Chemical Composition (C4) Mission, a proposed Discovery-Class Mission, will analyze materials released into the coma, providing information leading to the understanding of the chemical composition and make-up of the cometary nucleus. As one of two scientific instruments in the C4 spacecraft, an advanced and streamlined version of the Cometary Ice and Dust Experiment (CIDEX), a mini-CIDEX, will employ an X-Ray Fluorescence (XRF) spectrometer to determine bulk elemental composition of cometary dust grains and a Gas Chromatograph/Ion Mobility Spectrometer (GC/IMS) for determination of the molecular composition of dust and ices following stepwise pyrolysis and combustion. A description of the mini-CIDEX IMS will be provided as well as data from analyses conducted using the mini-CIDEX breadboard instrument.

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