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          Institute: MPI für Kernphysik     Collection: Interplanetary Dust Physics     Display Documents

ID: 62397.0, MPI für Kernphysik / Interplanetary Dust Physics
Cometary and Interstellar Dust Analyzer for comet Wild 2
Authors:Kissel, J.; Glasmachers, A.; Grün, Eberhard; Henkel, H.; Höfner, H.; Haerendel, G.; von Hoerner, H.; Hornung, K.; Jessberger, E. K.; Krueger, F. R.; Möhlmann, D.; Greenberg, J. M.; Langevin, Y.; Silén, J.; Brownlee, D.; Clark, B. C.; Hanner, M. S.; Hoerz, F.; Sandford, S.; Sekanina, Z.; Tsou, P.; Utterback, N. G.; Zolensky, M. E.; Heiss, C.
Date of Publication (YYYY-MM-DD):2003-10-30
Title of Journal:Journal of Geophysical Research
Journal Abbrev.:J. Geophys. Res.
Issue / Number:E10
Sequence Number of Article:8114
Copyright:Copyright 2003 by the American Geophysical Union.
Review Status:not specified
Audience:Experts Only
Abstract / Description:The Cometary and Interstellar Dust Analyzer (CIDA) instrument analyzes the composition of individual grains in the cometary coma. As each particle impacts a silver plate, the high-impact energy due to the relative velocity of the spacecraft as it flies through the coma causes the elements and molecular compounds in the particle to become ionized. Using a fast time-of-flight mass spectrometer, a complete set of ions are detected for each impact, from a mass range of 1 (atomic hydrogen) up to a few thousand atomic mass units, encompassing all elements in the periodic table and many molecules, such as organic compounds. This experimental technique has already been applied with excellent success at Halley's comet, and the CIDA derivative instrument is flying on the Stardust mission, which will encounter comet Wild 2 in January of 2004. The data returned will give clues to the elemental and chemical composition of the dust component of this comet.
Free Keywords:dust mass spectrometer, interstellar and cometary dust, composition, positive and negative ions, instrument description.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group K. Mauersberger/Interplantary Dust Research (E. Grün)
MPI für extraterrestrische Physik
MPI für Aeronomie
External Affiliations:Fachbereich Elektrotechnik und Informationstechnik, University Wuppertal, Wuppertal, Germany, von Hoerner und Sulger GmbH, Schwetzingen, Germany, International University Bremen, Bremen, Germany, von Hoerner und Sulger GmbH,
Schwetzingen, Germany, Universität Neubiberg, Neubiberg, Germany, Institut für Planetologie der Universität Münster,
Muenster, Germany, Ingenieurbuero Krueger, Darmstadt, Germany, DLR Institut für Weltraumsensorik, Berlin, Germany, Deceased November 2001, Institut d'Astrophysique, Orsay, France, Department of Geophysics, Finnish Meteorological Institute, Helsinki, Finland, Department of Astronomy, University of Washington, Seattle, Washington, USA, Lockheed Martin Aerospace, Denver, Colorado, USA, Jet Propulsion Laboratory, Pasadena, California, USA, NASA Johnson Space Center, Houston, Texas, USA, NASA Ames Research Center,
Moffett Field, California, USA, Jet Propulsion Laboratory,
Pasadena, California, USA, Consultant, Santa Barbara, California, USA, NASA Johnson Space Center, Houston, Texas, USA, Merck AG, Darmstadt, Germany
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