Researchers propose design theory for high-homogeneity multilayer Halbach magnet

Portable magnetic resonance (MR) systems have become a hot research topic for low-field MR systems in recent years thanks to the research and development of high homogeneity multilayer Halbach magnets. However, due to the imperfect design theory, current magnet design methods mostly adopt approximate calculation or finite element simulation, which have problems such as low calculation accuracy and time-consuming simulation optimization.