A beam path control apparatus for radiation therapy of a tumor of a patient with positively charged particles from a charged particle cancer therapy system, the apparatus comprising the following features that are configured to be sequentially traversed by a charged particle beam path: an injector, a synchrotron; a pair of oscillation inducing blades (1212, 1214) configured to span said charged particle beam path, said pair of oscillation blades (1212, 1214) is positioned at a first distance from a center of said synchrotron; a beam transport system; an extraction foil separating said synchrotron from said beam transport system wherein said extraction foil comprises a thickness of less than one hundred micrometers; and said beam transport system comprising: a pair of extraction blades (1214, 1216) configured to span said charged particle beam path, said pair of extraction blades (1214, 1216) is positioned at a second distance from said center of said synchrotron, said first distance is greater than said second distance; a deflector about said charged particle beam path; and an output foil, wherein said output foil defines a vacuum barrier between atmosphere and a first portion of said charged particle beam path within said synchrotron, said output foil further comprising a coating substantially covering at least a portion of said output foil, said coating is configured to emit photons when struck by the positively charged particles in said charged particle beam path. an injector, a synchrotron; a pair of oscillation inducing blades (1212, 1214) configured to span said charged particle beam path, said pair of oscillation blades (1212, 1214) is positioned at a first distance from a center of said synchrotron; a beam transport system; an extraction foil separating said synchrotron from said beam transport system wherein said extraction foil comprises a thickness of less than one hundred micrometers; and said beam transport system comprising: a pair of extraction blades (1214, 1216) configured to span said charged particle beam path, said pair of extraction blades (1214, 1216) is positioned at a second distance from said center of said synchrotron, said first distance is greater than said second distance; a deflector about said charged particle beam path; and an output foil, wherein said output foil defines a vacuum barrier between atmosphere and a first portion of said charged particle beam path within said synchrotron, said output foil further comprising a coating substantially covering at least a portion of said output foil, said coating is configured to emit photons when struck by the positively charged particles in said charged particle beam path. a pair of extraction blades (1214, 1216) configured to span said charged particle beam path, said pair of extraction blades (1214, 1216) is positioned at a second distance from said center of said synchrotron, said first distance is greater than said second distance; a deflector about said charged particle beam path; and an output foil, wherein said output foil defines a vacuum barrier between atmosphere and a first portion of said charged particle beam path within said synchrotron, said output foil further comprising a coating substantially covering at least a portion of said output foil, said coating is configured to emit photons when struck by the positively charged particles in said charged particle beam path.