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Radiation Measurements of the Mars Science Lab Radiation Assessment Detector (MSL-RAD) on the Surface of Mars

Reitz, Guenther and Matthiä, Daniel and Hassler, Donald M. and Wimmer-Schweingruber, Robert and Ehresmann, Bent and Zeitlin, Cary and Guo, Jingnan and Koehler, Jan (2016) Radiation Measurements of the Mars Science Lab Radiation Assessment Detector (MSL-RAD) on the Surface of Mars. In: 46th International Conference on Environmental Systems ICES2016 Vienna, Austria Conference Proceedings (437), pp. 3504-3512. 46th International Conference on Environmental Systems ICES2016, 10.-14. Juli 2016, Vienna, Austria.

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Abstract

The Radiation Assessment Detector (RAD) was designed to characterize the radiation environment as “Life Limiting Factor” to habitability and to help to prepare for future human exploration of Mars. The Mars Science Laboratory spacecraft (MSL), containing the Curiosity rover, in which RAD is integrated, was launched to Mars on November 26, 2011. Although not part of the mission planning, RAD was operated already during the 253 day and 560 million km cruise to Mars and made the first detailed and time-resolved measurements of a radiation environment that will exist inside future spacecraft carrying humans to Mars and in other deep space missions. On August 6, 2012 the Curiosity rover landed on the surface of Mars. RAD started measuring the surface radiation exactly 100 years after the discovery of cosmic rays on August 7, 1912 RAD made the first observation of the radiation environment on the surface of another planet and is still gathering/recording data today. Here we present data on particle fluxes, absorbed dose and dose equivalent from both galactic cosmic rays and solar particles together with model calculations. The dose equivalent rate is found to be 0.64±0.12 mSv/day on the surface on Mars from Aug 7, 2012 until June 1, 2013 and 1.84±0.3 mSv/day during cruise. The high level of complexity of the data allows for benchmarking of space radiation transport models and thereby supports the validation and improvement of predictive models for health risks of astronauts during space missions.

Item URL in elib:https://elib.dlr.de/106090/
Document Type:Conference or Workshop Item (Speech)
Title:Radiation Measurements of the Mars Science Lab Radiation Assessment Detector (MSL-RAD) on the Surface of Mars
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Reitz, GuentherGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Department of Radiation Biology, 51477 Köln, GermanyUNSPECIFIED
Matthiä, DanielGerman Aerospace Center (DLR), Institute of Aerospace Medicine, Department of Radiation Biology, 51477 Köln, GermanyUNSPECIFIED
Hassler, Donald M.South West Reaearch Institute, Boulder, CO, USA and Institut d’Astrophysique Spatiale (IAS), University Paris Sud, Orlay, FranceUNSPECIFIED
Wimmer-Schweingruber, RobertChristian-Albrechts-Universität zu Kiel, Kiel, GermanyUNSPECIFIED
Ehresmann, BentSouthwest Research Institute, Boulder, CO United StatesUNSPECIFIED
Zeitlin, CaryLockhead Martin Information Systems & Global Solutions Houston, United StatesUNSPECIFIED
Guo, JingnanChristian-Albrechts-Universität zu Kiel, Kiel, GermanyUNSPECIFIED
Koehler, JanChristian-Albrechts-Universität zu Kiel, Kiel, GermanyUNSPECIFIED
Date:2016
Journal or Publication Title:46th International Conference on Environmental Systems ICES2016 Vienna, Austria Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 3504-3512
Status:Published
Keywords:MSL-RAD, Radiation measurements, Mars
Event Title:46th International Conference on Environmental Systems ICES2016
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:10.-14. Juli 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben MSL-Radiation, R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:23 Sep 2016 08:06
Last Modified:31 Jul 2019 20:03

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