Journal : Acta Geophysica
Article : Solar energetic particle fluences from SOHO/ERNE

Authors :
Lilensten, J.
Laboratoire de Planétologie de Grenoble, OSUG-CNRS, Grenoble, France,,
Zuccarello, F.
Dipartimento di Fisica e Astronomia, Universitá di Catania, Catania, Italy,,
Zuccarello, F.
Dipartimento di Fisica e Astronomia, Universitá di Catania, Catania, Italy,,
Lundstedt, H.
Swedish Institute of Space Physics, Lund, Sweden,,
Kretzschmar, M.
LPCE/CNRS, Orléans, France,,
Contarino, L.
INAF Osservatorio Astrofisico di Catania, Catania, Italy,,
Messerotti, M.
INAF-Trieste Astronomical Observatory, Trieste, Italy,,
Desorgher, L.
Physikalisches Institut, University of Bern, Bern, Switzerland,,
Usoskin, I. G.
Sodankylä Geophysical Observatory, University of Oulu, Oulu, Finland,,
Dudok de Wit, T.
LPCE, CNRS and University of Orléans, Orléans, France,,
Valtonen, E.
Space Research Laboratory, Department of Physics, University of Turku, Turku, Finland,,
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.

Keywords : space weather, particle fluences, solar energetic particles,
Publishing house : Instytut Geofizyki PAN
Publication date : 2009
Number : Vol. 57, no. 1
Page : 116 – 124

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Qute : Lilensten, J. ,Zuccarello, F. ,Zuccarello, F. ,Lundstedt, H. ,Kretzschmar, M. ,Contarino, L. ,Messerotti, M. ,Desorgher, L. ,Usoskin, I. G. ,Dudok de Wit, T. ,Valtonen, E. ,Valtonen, E. , Solar energetic particle fluences from SOHO/ERNE. Acta Geophysica Vol. 57, no. 1/2009