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



  history
ID: 28844.0, MPI für Kernphysik / Interplanetary Dust Physics
Laboratory calibration of the Cassini Cosmic Dust Analyser (CDA) using new, low density projectiles. FUTURE
Authors:Goldsworthy, B. J.; Burchell, M. J.; Cole, M. J.; Green, S. F.; Leese, M. R.; McBride, N.; McDonnell, J. A. M.; Muller, M.; Grün, E.; Srama, R.; Armes, S. P.; Khan, M. A.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Advances in Space Research
Volume:29
Start Page:1139
End Page:1144
Review Status:not specified
Audience:Experts Only
Abstract / Description:The Cassini Cosmic Dust Analyser (CDA), developed from the Galileo and Ulysses dust instruments with the addition of a Chemical Analyser, is currently travelling outward from the Earth (collecting data from March 1999 onward) to the Saturnian system (arrival 2004) via Jupiter. The Chemical Analyser will provide information on the elemental composition of impacting micrometeoroids through impact ionisation, time-of-flight mass spectrometry. A rigorous calibration programme primarily focussed upon the Chemical Analyser is in progress at the University of Kent at Canterbury. A 2-MV Van de Graaff electrostatic accelerator and CDA laboratory model are used to simulate impacts. Acceleration of revolutionary low density, polymer dust particles has enabled an insight into the response of CDA to molecularly bonded material with increasing event velocity. These conducting polymer coated polystyrene latex particles represent significantly better analogues for carbonaceous cosmic grains than more traditionally accelerated projectiles (e.g. iron) and have enabled complex organic spectra to be produced in the laboratory. The current status of an ongoing programme is reported. Three samples are presented, two polypyrrole coated latexes of differing size and one PEDOT- coated latex sample. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group K. Mauersberger/Interplantary Dust Research (E. Grün)
External Affiliations:Univ Kent, Sch Phys Sci, Canterbury CT2 7NR, Kent, England; Univ Sussex, Sch Chem Phys & Environm Sci, Brighton BN1 9QJ, E Sussex, England
Identifiers:ISI:000176837500001 [ID No:1]
ISSN:0273-1177 [ID No:2]
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