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Solar energetic particle fluences from SOHO/ERNE

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Abstract

We have calculated integral fluences of solar protons and helium nuclei at 19 energy thresholds between 1.6 and 90 MeV/n from the SOHO/ERNE measurements during the years 1996–2005. We have also calculated fluences of oxygen and iron in the energy range from 10 up to a few hundred MeV/n for nineteen solar energetic particle (SEP) events. These are the first results of the work aiming at a full employment of the ERNE data in investigating the fluence distributions of SEP events over the entire solar activity cycle 23 and in deriving the total dose received on-board SOHO during its mission. Some instrumental problems are identified and future developments are presented.

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Authors and Affiliations

  1. Space Research Laboratory, Department of Physics, University of Turku, Turku, Finland

    Eino Valtonen, Esa Riihonen & Iiro-Ville Lehtinen

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  1. Eino Valtonen
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  2. Esa Riihonen
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  3. Iiro-Ville Lehtinen
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Correspondence to Eino Valtonen.

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Valtonen, E., Riihonen, E. & Lehtinen, IV. Solar energetic particle fluences from SOHO/ERNE. Acta Geophys. 57, 116–124 (2009). https://doi.org/10.2478/s11600-008-0056-4

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  • DOI: https://doi.org/10.2478/s11600-008-0056-4

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