Bonn 2020 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 1: Near Earth Space

EP 1.2: Vortrag

Montag, 30. März 2020, 17:00–17:15, H-HS VIII

Yield function of the DOSTEL count and dose rates aboard the International Space Station — •Bernd Heber, Maximillian Brüdern, Sönke Burmeister, Anna Caprotti, Dennis Galsdorf, and Konstantin Herbst — Christian-Albrechts-Universität Kiel

The Earth is constantly hit by cosmic rays that have their origin in the galaxy. These GCRs contribute substantially to the radiation dose measured by particle detectors in space. Astronauts on the ISS are partially shielded by the Earth magnetic field. In addition the material of the ISS absorbs several tenth of MeV ions. The DOSTEL is part of the DOSIS 3D experiments and has been installed on board the ISS in 2009. The radiation field is a product of primary energetic particles and particles that are generated by the interaction of the primaries with the surrounding material. Since modeling of this environment is challenging we determined the instruments yield function by analyzing the count rate as well as the dose rate during the latitude scans of the ISS. In order to determine the yield function we utilized published AMS proton and Helium spectra and compute the cut-off rigidity using PLANETOCOSMICS. Here we will present and discuss the first results obtained during moderate solar activity from 2014 to 2017.