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    Very high energy proton peak flux model

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    Authors
    Raukunen, O.
    Paassilta, M.
    Vainio, R.
    Rodriguez, J.V.
    Eronen, T.
    Crosby, N.
    Dierckxsens, M.
    Jiggens, P.
    Heynderickx, D.
    Sandberg, I.
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    Discipline
    Physical sciences
    Subject
    Sun
    energetic particle
    modelling
    particle radiation environment
    space weather
    Audience
    Scientific
    Date
    2020
    Metadata
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    Description
    Solar energetic particles (SEPs) pose a serious radiation hazard to spacecraft and astronauts. The highest energy SEPs are a significant threat even in heavily shielded applications. We present a new probabilistic model of very high energy differential peak proton fluxes. The model is based on GOES/HEPAD observations between 1986 and 2018, i.e., covering very nearly three complete solar cycles. The SEP event list for the model was defined using a statistical criterion derived by setting the possibility of false detection of an event to 1%. The peak flux distributions were calculated for the interpolated energies 405 MeV, 500 MeV and 620 MeV, and modelled with exponentially cut off power law functions. The HEPAD data were cleaned and corrected using a “bow-tie” method which is based on the response functions of the HEPAD channels P8–P10 found in the instrument calibration reports. The results of the model are available to the Space Weather community as a web-based tool at the ESA’s Space Situational Awareness Programme Space Weather Service Network.
    Citation
    Raukunen, O.; Paassilta, M.; Vainio, R.; Rodriguez, J.V.; Eronen, T.; Crosby, N.; Dierckxsens, M.; Jiggens, P.; Heynderickx, D.; Sandberg, I. (2020). Very high energy proton peak flux model. , Journal of Space Weather and Space Climate, Vol. 10, A24, DOI: 10.1051/swsc/2020024.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/7567
    doi: http://dx.doi.org/10.1051/swsc/2020024
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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