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![]() ![]() Then, a second model translates the exposure into biological risk, especially in blood-forming organs (bone marrow, thymus, spleen), which are the most sensitive to radiation. To calculate how much radiation an astronaut is exposed to, the first model draws data from six dosimeters-sensors that detect incoming radiation-placed around the inside of the craft in the same locations the crew would be found. The researchers designed the project specifically for NASA’s Orion Multi-Purpose Crew Vehicle, which the agency plans to use in future missions to the Moon and Mars. ![]() demonstrate a new system of models that could help show, in real time, both how many SEPs astronauts are exposed to and how much damage the exposure could cause to our biology. As NASA plans longer missions deeper into space, researchers are trying to understand what type of risk these acute bursts of SEPs will pose to astronauts. ![]() But occasionally, following space weather events like coronal mass ejections, the Sun can release a much denser barrage of SEPs that greatly amplifies the danger to human health-the same way a quick, torrential downpour will soak you more thoroughly than a long, misty morning. Ordinarily, the risk of solar radiation to deep-space travelers is relatively low and constant, a steady background of small doses. ![]()
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