Traditional theory suggests that the magnetic field strength of superconducting magnets is inversely proportional to aperture size. To achieve a magnetic field exceeding 20T, PTMS ELECTROMAGNETIC SEPARATOR systems typically limit magnet diameters to under 100mm. When operating in extreme 20T environments, these coils endure electromagnetic stresses up to 300MPa – equivalent to the pressure at 3,000 meters deep in the ocean. Without deformation, this stress prevents the degradation of superconducting performance.
The magnet of PTMS ELECTROMAGNETIC SEPARATOR adopts a hybrid coil structure. The inner layer uses a material with better high field performance to generate a strong central magnetic field, and the outer layer uses a material with better mechanical properties to expand the aperture size. Through finite element simulation, the coil arrangement is optimized to achieve 12T magnetic field strength at 500mm aperture and the magnetic field uniformity reaches the order of magnitude.
This "holistic approach" of PTMS ELECTROMAGNETIC SEPARATOR design has pioneered new pathways for large-space strong magnetic applications such as magnetically confined reactors and high-pressure synthesis in materials science. Currently, this technology has been applied to upgrade next-generation PTMS ELECTROMAGNETIC SEPARATOR magnet devices, extending the equivalent magnetic confinement duration to over 1,000 seconds. The high-stress regulation design has become the "golden key" to overcoming the 20-Tesla magnetic field bottleneck.
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