RPC-ICA: The Ion Composition Analyzer of the Rosetta Plasma Consortium |
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| Authors: | H Nilsson R Lundin K Lundin S Barabash H Borg O Norberg A Fedorov J-A Sauvaud H Koskinen E Kallio P Riihelä J L Burch |
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| Institution: | (1) Swedish Institute of Space Physics, P.O. Box 812, SE-981 28 Kiruna, Sweden;(2) Present address: Esrange Division, Swedish Space Corporation, P.O. Box 802, SE-981 28 Kiruna, Sweden;(3) Centre d’Etudes Spatiale des Rayonnements, Toulouse, France;(4) Finnish Meteorological Institute, Helsinki, Finland;(5) Southwest Research Institute, San Antonio, Texas, USA |
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| Abstract: | The Ion Composition Analyzer (ICA) is part of the Rosetta Plasma Consortium (RPC). ICA is designed to measure the three-dimensional
distribution function of positive ions in order to study the interaction between the solar wind and cometary particles. The
instrument has a mass resolution high enough to resolve the major species such as protons, helium, oxygen, molecular ions,
and heavy ions characteristic of dusty plasma regions. ICA consists of an electrostatic acceptance angle filter, an electrostatic
energy filter, and a magnetic momentum filter. Particles are detected using large diameter (100 mm) microchannel plates and
a two-dimensional anode system. ICA has its own processor for data reduction/compression and formatting. The energy range
of the instrument is from 25 eV to 40 keV and an angular field-of-view of 360° × 90° is achieved through electrostatic deflection
of incoming particles. |
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| Keywords: | plasma solar wind ions |
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