抄録
Shock-compressed states of planetary materials have been analyzed using high-power lasers. Here we
review recent results of these experiments to compress planetary ices and minerals. Planetary ices made
of hydrogen, oxygen, carbon and nitrogen are the most abundant solid occurring in the universe. Their
particles had coalesced together to develop into icy giant planets such as Uranus and Neptune when the
solar system was formed. At high pressure and temperature conditions relevant to the interiors of these
planets, these ices were proved to become a good electronic conductor, which is the best-possible rationale
of strong magnetic fields originating from insides of these planets. Using high-power lasers, such
exotic properties of planetary ices have been revealed. In addition, shock-compressed states of planetary
minerals (represented by forsterite olivine, Mg2SiO4) were successfully analyzed; for this purpose, X-ray
free electron laser is combined with the high-power laser for ultrafast analysis of shock-ompressed crystal
structures.
https://ror.org/05qs31q25 
