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Heidelberg 2006 – scientific programme

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EP: Extraterrestrische Physik

EP 18: Sonne: Energetische Teilchen, Sonnenwind und CMEs

EP 18.3: Fachvortrag

Thursday, March 16, 2006, 11:45–12:00, B

Determination of absolute fluxes of heavy solar wind ions with ACE/SWICS — •Muharrem Köten1, Lars Berger1, Jim Raines2, Christian T. Steigies1, Robert F. Wimmer-Schwingruber1, and Thomas H. Zurbuchen21Institut für Experimentelle und Angewandte Physik, University of Kiel, D-24098 Kiel, Germany — 2University of Michigan, Atmospheric, Oceanic, and Space Sciences 2455 Hayward St., Ann Arbor, MI 48109, USA

SWICS (Solar Wind Ion Composition Spectrometer) is a linear time-of-flight mass spectrometer that allows the determination of energy, mass, and charge of solar wind ions and suprathermal particles. We developed an advanced efficiency model which calculates the probability that the instrument will detect an ion with given mass m, charge q, and velocity v. Using that model and measured count rates from the instrument in space we determine the absolute fluxes of different heavy solar wind ions in different solar wind regimes.

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