EXPOSE-R cosmic radiation time profile

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Dachev T, Horneck G, Haeder DP, Schuster M, Lebert M
Zeitschrift: International Journal of Astrobiology
Verlag: Cambridge University Press (CUP)
Jahr der Veröffentlichung: 2015
Band: 14
Heftnummer: 1
Seitenbereich: 17-25
ISSN: 1473-5504


Abstract


The aim of the paper is to present the time profile of cosmic radiation exposure obtained by the radiation risks radiometer-dosimeter (R3DR) during the ESA exposition facility for EXPOSE-R mission (EXPOSE-R) in the EXPOSE-R facility outside the Russian Zvezda module of the International Space Station (ISS). Another aim is to make the obtained results available to other EXPOSE-R teams for use in their data analysis. R3DR is a low mass and small dimensions automated device, which measures solar radiation in four channels and in addition cosmic ionizing radiation. The main results of cosmic ionizing radiation measurements are: three different radiation sources were detected and quantified: galactic cosmic rays (GCR), energetic protons from the inner radiation belt (IRB) in the region of the South Atlantic anomaly and energetic electrons from the outer radiation belt (ORB). The highest daily averaged absorbed dose rate of 506 mu Gy day (1) came from IRB protons; GCR delivered much smaller daily absorbed dose rates of 81.4 mu Gy day(-1) on average, and ORB source delivered on average a dose rate of 89 mu Gy day(-1). The IRB and ORB daily averaged absorbed dose rates were higher than those observed during the ESA exposition facility for EXPOSE-E mission (EXPOSE-E), whereas the GCR rate was smaller than that measured during the EXPOSE-E mission. The reason for this difference is much less surrounding constructions shielding of the R3DR instrument in comparison with the R3DE instrument.



FAU-Autoren / FAU-Herausgeber

Lebert, Michael PD Dr.
Lehrstuhl für Zellbiologie
Schuster, Martin
Lehrstuhl für Zellbiologie


Autor(en) der externen Einrichtung(en)
Bulgarian Academy of Sciences (BAS) / Българска академия на науките
German Aerospace Center / Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)


Zitierweisen

APA:
Dachev, T., Horneck, G., Haeder, D.-P., Schuster, M., & Lebert, M. (2015). EXPOSE-R cosmic radiation time profile. International Journal of Astrobiology, 14(1), 17-25. https://dx.doi.org/10.1017/S1473550414000093

MLA:
Dachev, Tsvetan, et al. "EXPOSE-R cosmic radiation time profile." International Journal of Astrobiology 14.1 (2015): 17-25.

BibTeX: 

Zuletzt aktualisiert 2018-06-08 um 13:23