The LEBT channel is designed for transporting a beam of multiply charged ions with A/Z from 4 to 8 (up to Bi-209(27+) from the laser source of heavy ions and 70 kV extractor system to the initial part of the linear accelerator. The LEBT consists of the transport line for separation of the main ion beam, and the section for beam matching with the accelerating section RFQ. Beam dynamic simulation was carried out taking into account the fields of three-dimensional distributions of the magnetic elements. As a result of the simulation of particle dynamics, it was possible to provide the 4-dimensional matching of Bi-209(27+) ith the RFQ, with a minimal emittance increase in the LEBT.
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