METHOD OF REDUCING ENERGY SPREAD OF PARTICLE BEAM IN CYCLOTRON

摘要

FIELD: physics. ^ SUBSTANCE: method of reducing energy spread of a particle beam in cyclotron involves adding harmonics to the fundamental frequency of the accelerating high-frequency field, where the voltage curve of the resultant accelerating field has such a shape where particles receive equal intake of energy as they pass through accelerating gaps. The harmonic is added to the fundamental frequency such that the region of the voltage curve of the resultant accelerating field on which the beam is located while passing through the accelerating gap becomes linear; during the acceleration process, particles pass through the accelerating gaps being located on the falling and rising parts of the curve of the resultant wave to compensate for difference in intake of energy by particles during successive passage through accelerating gaps during the acceleration process. ^ EFFECT: invention reduces energy spread of a beam in a cyclotron as a result of constant compensation for difference in intake of energy by particles during successive passage through accelerating gaps. ^ 8 dwg