Design and Analysis of Magnetic Lenses for High Energy Proton Accelerators

High Energy Proton beams have application in scientific, industrial and Medical fields. High energy proton accelerators mainly consist of ion source and array of RF accelerating cavities and focusing magnets. Low energy section of accelerator deploys solenoid focusing magnet as they focusses the beam simultaneously in both the axis but are less efficient then a quadrupole focusing magnets in focusing strength. This paper discusses design of an Electromagnetic Quadrupole for transverse focusing of 200 MeV section of High Energy Proton Accelerator. Method used for optimization of magnetic pole shape for obtaining better than 1000 ppm uniformity in Good field region is described. Paper details the studies carried out on influence of Magneto motive forces on figure of merits of the magnet in terms of uniformity and magnetic field gradient. Paper describes the uniformity, linearity and higher order modes achieved in the design.