Mevion Medical Systems is a leading provider of proton therapy systems for radiation treatment of cancer patients. The MEVION S250 Series, built on the world's only gantry-mounted proton accelerator and Mevion's patented direct beam technology, delivers high-powered, efficient proton therapy treatments with enhanced beam quality, stability, and uptime. The Series offers three models, each with unique capabilities, making proton therapy fully scalable and financially viable for all cancer centers.