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The impact of cosmic rays
People living on the surface of the Earth are also exposed to natural background radiation, with one of its sources being secondary cosmic rays. Since the atmosphere protects the Earth by reducing the impact of cosmic rays, the amount of cosmic radiation reaching the surface is significantly lower than at high altitudes. This is a natural phenomenon, and there is no need for excessive concern about the effects of natural background radiation on the surface. In terms of the characteristics of cosmic rays, the cosmic rays received at high altitudes are stronger than those on the ground. According to ICRP Publication 132, occasional air travel does not typically result in radiation doses that pose health risks.
For astronauts operating at even higher altitudes, such as on the International Space Station (ISS), the absence of atmospheric and geomagnetic protection makes radiation exposure a critical consideration in daily life. Radiation levels inside and outside the space station are monitored using instruments, and each astronaut’s short-term and lifetime radiation doses are tracked to assess radiation-related health risks. Additionally, protective measures such as shielding materials and protective clothing are implemented to ensure the safety and health of personnel.
For astronauts operating at even higher altitudes, such as on the International Space Station (ISS), the absence of atmospheric and geomagnetic protection makes radiation exposure a critical consideration in daily life. Radiation levels inside and outside the space station are monitored using instruments, and each astronaut’s short-term and lifetime radiation doses are tracked to assess radiation-related health risks. Additionally, protective measures such as shielding materials and protective clothing are implemented to ensure the safety and health of personnel.
更新時間：2025-03-04 14:49