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The solar particle event on 10-13 September 2017 – Spectral reconstruction and calculation of the radiation exposure in aviation and space

Matthiä, Daniel and Meier, Matthias M. and Berger, Thomas (2018) The solar particle event on 10-13 September 2017 – Spectral reconstruction and calculation of the radiation exposure in aviation and space. 23rd WRMISS 2018, 4.-6. September 2018, Tsuruga, Japan.

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Abstract

The solar energetic particle event on 10 September 2017 and on the following days was the strongest event in recent years. It was recorded as Ground Level Enhancement 72 by Neutron Monitors Stations on the Earth and measured by a number of instruments in space. One aspect of such a space weather event is the potentially increased radiation exposure in aviation and space. Numerical simulations can help estimate the elevated dose rates during the event; a critical aspect in these simulations is the description of the primary particle spectrum. In this work, we present 1 hour averaged proton spectra during the event derived from GOES measurements and described by two different analytic functions. The derived proton spectra are used to calculate the radiation exposure in aviation and different space scenarios: low-Earth orbit, interplanetary space, and Mars surface and the results are discussed in the context of available experimental data. While the results indicate that in most of these scenarios in aviation and space the event was of little relevance compared to the total exposure from galactic cosmic radiation, the skin dose in a lightly shielded environment in interplanetary space may have reached about 30% to 60% of the NASA 30-day dose limit.

Item URL in elib:https://elib.dlr.de/125422/
Document Type:Conference or Workshop Item (Speech)
Title:The solar particle event on 10-13 September 2017 – Spectral reconstruction and calculation of the radiation exposure in aviation and space
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Matthiä, DanielRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Daniel.Matthiae (at) dlr.dehttps://orcid.org/0000-0003-1507-0143
Meier, Matthias M.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Matthias.Meier (at) dlr.dehttps://orcid.org/0000-0003-0918-6473
Berger, ThomasRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Thomas.Berger (at) dlr.dehttps://orcid.org/0000-0003-3319-5740
Date:4 September 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:solar energetic particle event, radiation exposure, aviation, space
Event Title:23rd WRMISS 2018
Event Location:Tsuruga, Japan
Event Type:international Conference
Event Dates:4.-6. September 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:19 Dec 2018 14:59
Last Modified:31 Jul 2019 20:23

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