Beam injection system into an electron ring compressor

A system for three-turn injection of the beam into the electronic ring compressor is elaborated. The electron beam is rejected from the linear accelerator at an average energy of 1.5 MeV through the screening nozzle at a radius of 26 cm into the growing magnetic field. The energy of the injected electrons and the strength of the magnetic field are varied so that injection is always performed onto the equilibrium radius. In this case, the ring will feature an electron pulse spread of +-3.5% which makes it possible to accumulate up to 1013 particles in the ring, never exceeding the threshold of the azimuthal coherent non-stability. From the point of view of its design and technology, the injection system provides for creating superhigh vacuum of about 10-9 mm Hg in the compressor chamber which ensures the life of the ring of up to 2 ms