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Radiation assessment detector

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Title: Radiation assessment detector  
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Subject: Mars Science Laboratory, Cosmic ray, Space medicine, Timeline of Mars Science Laboratory, RAD
Collection: Mars Science Laboratory Instruments, Space Science Experiments
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Radiation assessment detector

Radiation Assessment Detector on the Curiosity rover (Mars Science Laboratory).

Radiation Assessment Detector (RAD) was the first of ten instruments in the Mars Science Laboratory (MSL) to be turned on.


  • Purpose 1
  • Astrobiology 2
  • Gallery 3
  • See also 4
  • References 5
  • External links 6


The first role of RAD was to characterize the broad spectrum of radiation environment found inside the spacecraft during the cruise phase. These measurements have never been done before from the inside of a spacecraft in interplanetary space. Its primary purpose is to determine the viability and shielding needs for potential human travelers on a manned mission to Mars, as well as to characterize the radiation environment on the surface of Mars, which it started doing immediately after MSL landed in August 2012.[1] Turned on after launch, the RAD recorded several radiation spikes caused by the Sun.[2]

RAD is funded by the Exploration Systems Mission Directorate at NASA Headquarters and Germany's Space Agency (DLR), and developed by the Southwest Research Institute (SwRI) and the extraterrestrial physics group at Christian-Albrechts-Universität zu Kiel, Germany.[1][2]

On 31 May 2013, NASA scientists reported the results obtained during cruise, and stated that the equivalent dose radiation for even the shortest round-trip with current propulsion systems and comparable shielding is found to be 0.66 ± 0.12 sievert. This implies a great health risk caused by energetic particle radiation for any manned mission to Mars.[3][4][5]


The radiation sources that are of concern for

External links

  1. ^ a b "SwRI Radiation Assessment Detector (RAD) Homepage". Southwest Research Institute. Retrieved 19 January 2011. 
  2. ^ a b NASA – RAD
  3. ^ a b c Kerr, Richard (31 May 2013). "Radiation Will Make Astronauts' Trip to Mars Even Riskier".  
  4. ^ a b c Zeitlin, C. et al. (31 May 2013). "Measurements of Energetic Particle Radiation in Transit to Mars on the Mars Science Laboratory".  
  5. ^ a b c Chang, Kenneth (30 May 2013). "Data Point to Radiation Risk for Travelers to Mars".  
  6. ^ First radiation measurements from the surface of Mars. (9 December 2013). Southwest Research Institute. Science Daily.
  7. ^ Hassler, Donald M.; Zeitlin, Cary; Wimmer-Schweingruber, Robert F.; Ehresmann, Bent; Rafkin, Scot; Martin, Cesar; Boettcher, Stephan; Koehler, Jan; Guo, Jingnan; Brinza, David E. Reitz, Guenther; Posner, Arik; the MSL Science Team (7–12 April 2013), "The Radiation Environment on the Martian Surface and during MSL's Cruise to Mars", EGU General Assembly 2013, Ads Labs, retrieved 23 June 2013 
  8. ^ a b Hassler, Donald M.; et al. (24 January 2014). "Mars’ Surface Radiation Environment Measured with the Mars ScienceLaboratory’s Curiosity Rover" (PDF). Science 343 (6169): 1244797.  


See also

Radiation doses - Mars trip/surface (MSL) (2011-2013)[3][4][5] 
Radiation levels during trip from Earth to Mars (2011-2012) 
Radiation levels on the surface of Mars (2012-2013) 
Calculating radiation dose for biological tissues 
Sources of ionizing radiation in interplanetary space 


[8] Research published in January 2014 of data from RAD, state that "


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