Complex sentence: The Pulsed Field Magnets are magnets which are powered by a large capacitive discharge of energy, forming a highly spatiotemporally heterogeneous magnetic field of between 50 and 100 T, which lasts several tens of milliseconds.
Split into simpler sentences: The Pulsed Field Magnets are magnets which are powered by a large capacitive discharge of energy, forming a highly spatiotemporally heterogeneous magnetic field. Nowadays, the magnetic field produced by the pulsed field magnets could reach between 50 and 100 T, and lasts several tens of milliseconds.