A Japan-US-Europe joint research team led by Professor Masakatsu Murakami of the Institute of Laser Engineering Osaka University has discovered a new physical mechanism that generates an ultra-high magnetic field called Megatesla, which has never been seen before.
Magnetic fields, such as magnetic tomography (MRI) and magnetic necklaces used in hospitals, are physical elements that are widely used in our real life.Magnetic field fusion and linear motor cars, which are considered to be future energy sources, require a high-strength magnetic field of Kirotesla. The magnetic field strength of is only 1 to 2 kilotesla.
On the other hand, in this research, based on a principle completely different from the conventional method of generating a high strong magnetic field, it is said that a new principle "microtube implosion" that realizes a megatesla that is XNUMX times stronger than kilotesla has been discovered. "Microtube implosion" is to generate a megatesla-class ultra-high magnetic field by irradiating a micron-sized hollow cylinder with a powerful ultrashort pulse laser, and the principle is demonstrated by numerical experiments using a supercomputer. succeeded in.
Based on this physical mechanism, if a megatesla-class ultra-high magnetic field can be actually realized on the ground in the future, quantum electromagnetic mechanical effects and physical properties under ultra-high magnetic fields that have not even been discussed so far have been discussed. A wide range of applications will come into view with the development and development of unexplored research areas such as research and astrophysics related to the megatesla magnetic field predicted near neutron stars and black holes.It can be said that this is a result that gives a great impetus to research on the generation of ultra-high magnetic fields using the world's large-scale laser facilities.
Paper information:[Scientific Reports] Generation of megatesla magnetic fields by intense-laser-driven microtube implosions
