Modeling Beam Dynamics in a High-Energy Beam Transport Channel
摘要
A linear resonant pulsed accelerator of heavy ions with an energy of 4 MeV/nucleon, an operating frequency of 162.5 MHz, and a current of up to 10 mA is being developed at the National Research Center “Kurchatov Institute” (the Kurchatov Complex of Theoretical and Experimental Physics (KCTEP)). The high-energy beam transport (HEBT) channel is designed for transporting a beam of accelerated ions with A/Z = 4–8 to the ion stripping target before their injection into the booster. The main channel elements and their parameters, which provide transversal beam focusing and minimize the momentum spread of particles, have been determined. Some results of dynamic calculations in the HEBT channel with the use of three-dimensional models for the spatial distribution of a magnetic quadrupole lens field and an electrical debuncher field are presented.