Miniaturization and Integration of Measurement Systems for Space ElectromagneticEnvironments

摘要

Our exploitation of space is increasing and space systems such as GPS and climate satellites have become indispensable in our lives. It is hence very important to understand physical phenomena that occur in space. Space is filled with collisionless plasmas generated by the solar wind and the ionized upper atmosphere. The interaction between the solar wind and the Earth's magnetism forms the region called the magnetosphere. Space plasmas show different characteristics in the solar wind and the magnetosphere. The magnetosphere is divided into several regions depending on the plasmas' characteristics. The radiation belt region is the part of the magnetosphere that lies typically at geocentric distances of around 2 to 4 Earth radii. Highly energetic plasmas of protons and electrons exist in the radiation belts and can negatively influence space systems and human health. However, the mechanism of the generation and disappearance of the radiation belts is not yet clearly understood.