Proton / Ion therapy centers have usually between one and three treatment rooms, and in most of them, radiation therapy is delivered with only one type of radiation (either proton or carbon).There are only 6 centers in the world which have the capability of radiation therapy with both protons and carbons.
Currently, proton/ion therapy methods are expanding rapidly, and many centers provide this type of radiation therapy method. According to the PTCOG, in 2021, 99 proton therapy facilities and 12 carbon therapy facilities are in operation.
