The Giotto particulate impact analyzer

Details The Giotto particulate impact analyzer The Giotto particulate impact analyzer

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gmis.rept...67k&link_type=abstract

In ESA The Giotto Mission: Its Scientific Investigations p 67-83 (SEE N86-32473 24-12)

Computer Science

2

Giotto Mission, Halley'S Comet, Interplanetary Dust, Particulate Sampling, Chemical Composition, Hypervelocity Impact, Mass Distribution

Scientific paper

The Giotto Particulate Impact Analyzer will provide information on the composition of individual dust particles and the average composition and mass distribution of cometary matter released by Comet Halley. Knowledge of the material's composition and isotopic ratios will significantly increase understanding of the status and the genesis of comets. The instrument is derived from the dust experiment flown onboard the Helios-1 and 2 satellites, but mass resolution was improved to separate adjacent mass lines over the complete mass range of 1 to 110 mu. Variations in particle type or mean composition as a function of distance from the comet will yield information on the release mechaniam. The instument is sensitive to particles ranging in size from 3 times 10 to the minus 16th to 5 times 10 to the minus 10th power g, with impact rates of up to 100/sec. Data on 1000 to 5000 cometary particles should be gathered. The instrument is performing flawlessly.

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