System and equipment, which provide particle beams radiotherapy, to be had compact design and is suitable for single ventricle. Rotary stand component including being fixedly attached to the bank information transfer method cyclotron passes through beam-line components. The system is installed along with rotary stand component equipped with a single set of dipole magnet and assumes responsibility for beam energy selection and the deflection of a beam of electrons of dual function. The energy person of lowering ones standard or status can be exposed to air pressure. Beam-line components include that rotation section and static segment separated from each other first are exposed to environmental pressure by interlude.
