Development of LEBT and beam dynamics study in an initial RFQ part (input radio matcher) for a Heavy ion high current GSI-HSI-RFQ

摘要

Different variants of the LEBT for a Heavy Ion RFQ (GSI-UNILAC) were numerically investigated. The requirementsudfor initial matching conditions for the RFQ structure have been defined. The optimization of an unmodulatedudinput radio matcher (IRM) with a lowed slope of beam envelope was carried out with the use of the optimizingudcode ABC developed. The beam dynamics simulation with the use of the method of macroparticles was performedudfor the input radio matcher in comparison with the codes DYNAMION and PROTON. The comparison with dataudobtained from envelope equations and simulations was carried out.