Volume 8, Issue 3, September 2020, Page: 16-26
Radiation Analysis for Moon and Mars Missions
Andreas Märki, Märki Analytics for Space, Erlenbach ZH, Switzerland
Received: Oct. 11, 2020;       Accepted: Oct. 28, 2020;       Published: Nov. 4, 2020
DOI: 10.11648/j.ijass.20200803.11      View  44      Downloads  15
Abstract
This paper provides an overview of the radiation aspects of manned space flight to Moon and Mars. The expected ionizing radiation dose for an astronaut is assessed along the Apollo 11 flight path to the Moon. With the two dose values, the expected and the measured total dose, the radiation shielding and the activity of the Sun are estimated. To judge the risk or safety margin the radiation effects on humans are opposed. The radiation from the Sun has to be set to zero in the computer model to achieve the published radiation dose value of the Apollo 11 flight. Galactic and cosmic particles have not been modelled either. The Apollo 11 astronauts must have been lucky that during their flight the Sun was totally quiet in the solar maximum year 1969 – and also their colleagues of the subsequent Apollo flights, i.e. until 1972, where the published dose values still require a quiet Sun. The here built mathematical model allows assessing the total dose of a journey to Mars by only changing the flight duration. Even if in the meantime much thicker and/or active radiation shielding is proposed the radiation risk of manned space flight to Moon and Mars remains still huge.
Keywords
Space Radiation, Van Allen Belt, Apollo 11
To cite this article
Andreas Märki, Radiation Analysis for Moon and Mars Missions, International Journal of Astrophysics and Space Science. Vol. 8, No. 3, 2020, pp. 16-26. doi: 10.11648/j.ijass.20200803.11
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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