FIELD: physics.
SUBSTANCE: invention relates to acceleration engineering and can be used in physics of high-energy particles, industry, medicine and scientific research. Accelerator includes: a pulse induction system with beam time of flight sensors for synchronisation of accelerating pulses with beam current pulses; system for forming closed orbits of accelerated particles, consisting of beam-reflecting magnetic dipoles and correcting devices for compensation of defocusing action of dipoles in vertical plane; system for rigid focusing on straight sections; beam input and output system; vacuum system. Correcting devices are arranged at inlet and outlet of each beam deflecting section and are a short lens. Magnetic dipoles of orbit forming system, by reflecting beam particles, create closed orbits. Angle of incidence of beam on dipole is equal to angle of reflection. Since this equality does not depend on nature of distribution of field across longitudinal axis of dipole, equality of angles of incidence and reflection is preserved in edge fields of dipoles as well. This fact removes restrictions on lower injection energy threshold.
EFFECT: acceleration in a constant magnetic field with almost constant radius of orbit in entire range of acceleration, significant reduction of lower injection threshold, increased range of accelerated energies and particle Z/A ratio (where Ζ is charge, A is atomic number), absence of pre-accelerators, reduced cost of creation and operation of accelerator.
1 cl, 4 dwg
