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Mevion Introduces First Proton Therapy System for LINAC Vault

At ESTRO 2026, Mevion Medical Systems unveiled the MEVION S250-FIT, the first proton therapy system designed for installation in a standard LINAC radiation therapy vault. This system is both FDA-cleared and CE-marked, allowing cancer centers to incorporate proton therapy into existing LINAC-based treatment facilities.

LITTLETON, Mass.–(BUSINESS WIRE)– #MevionFIT–Proton therapy is entering the LINAC vault. At ESTRO 2026, Mevion Medical Systems will introduce the MEVION S250-FIT Proton Therapy System to the European radiation oncology community, the first proton therapy system designed for installation in a standard radiation therapy vault. Now both U.S. FDA-cleared and CE-marked under Regulation (EU) 2017/745, the S250-FIT creates a new pathway for cancer centers to bring proton therapy into existing LINAC-based treatm