Proton therapy destroys tumors with a precise, targeted dose of radiation. It is superior to traditional photon (x-ray) radiation because it minimizes radiation exposure to nearby healthy tissue, potentially reducing or eliminating short and long term treatment complications. This makes proton therapy the preferred treatment option for patients with cancers in sensitive locations, such as near the brain, spine, heart and eye.
The advantage of proton therapy comes from a phenomenon known as the Bragg Peak. Unlike photons, protons can be charged to reach the exact depth where a tumor is located, then stop. Very little proton radiation continues past the tumor site.
Despite the promise of proton therapy to help many patients, it is only now becoming widely adopted. This is because, traditionally, proton therapy systems have been too expensive, too large, and too complex for most cancer centers. But Mevion revolutionized the industry by inventing compact proton therapy, and is making proton therapy possible for any size cancer center.