The MEVION S250 Series™ is based on unique core technology. Unlike other systems, Mevion’s proton therapy systems have been engineered to eliminate the complexity of large accelerators and long beam transport lines. Mevion has designed the world’s only gantry mounted superconducting proton accelerator. Powered by the TriNiobium Core™, this revolutionary proton accelerator is only 6 feet (1.8 meters) in diameter, but can generate 250 MeV protons capable of reaching targets as deep as 32 centimeters.