Home > Astronomy, Curiosity, Manned Spaceflight, Mars, Solar System, Spaceflight, Unmanned Spaceflight > SwRI-Led Team Calculates The Radiation Exposure Associated With A Trip To Mars

SwRI-Led Team Calculates The Radiation Exposure Associated With A Trip To Mars


On November 26, 2011, the Mars Science Laboratory began a 253-day, 560-million-kilometer journey to deliver the Curiosity rover to the Red Planet. En route, the Southwest Research Institute-led Radiation Assessment Detector (RAD) made detailed measurements of the energetic particle radiation environment inside the spacecraft, providing important insights for future human missions to Mars.

“In terms of accumulated dose, it’s like getting a whole-body CT scan once every five or six days,” said Dr. Cary Zeitlin, a principal scientist in SwRI’s Space Science and Engineering Division and lead author of Measurements of Energetic Particle Radiation in Transit to Mars on the Mars Science Laboratory, scheduled for publication in the journal Science on May 31.

“Understanding the radiation environment inside a spacecraft carrying humans to Mars or other deep space destinations is critical for planning future crewed missions,” Zeitlin said. “Based on RAD measurements, unless propulsion systems advance rapidly, a large share of mission radiation exposure will be during outbound and return travel, when the spacecraft and its inhabitants will be exposed to the radiation environment in interplanetary space, shielded only by the spacecraft itself.”

Full Story: http://www.swri.org/9what/releases/2013/rad.htm#.UagaCH4o5hF

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