Abstract
A 27 MHz heavy-ion RFQ for high currents at low ion energies has been designed and built for RF and beam tests. The accelerating structure is a 4-rod RFQ with spiral stems, developed in the institute. This RFQ will serve as a prototype for the first part of a large RFQ, which may be installed in the new high-current injector of GSI. Particle dynamics calculations were carried out to check the RFQ design with respect to beam quality and transmission in the bunch-forming process. Results of calculations are discussed including some requirements of HIIF injection. A description of the experimental set-up and first results from beam measurements will be given by Kipperet al. in this volume.
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