Design of a new 10 GHz ECRIS with a hexapole of continuous easy axis orientation

A new 10 GHz ECR ion source for the ion production of high intensity and high charge state is being planned to build at the Laboratory of Nuclear Reactions, JINR. The main point about the design of this source is that we try to get a very simple and cheap ECR source with a flexible structure which could be variable during operation according to different purposes. This source will be equipped with a new hexapole with continuous easy axis orientation. Because of such new hexapole, this source is very compact with a simple structure, lower electric power consumption (less than 40 kw), lower cooling pressure and relatively low price. In addition, a very compact and cheap UHF (ultra high frequency) generator with an output power 800 W will be used in this source. An intense axial magnetic field up to 1.2 T and a sufficient field distribution are obtained by a fine optimization. Two different field configurations with and without iron puller will be tested. The designed structure makes it easy to change field configuration from one to another. The comparison with CAPRICE and GANIL (Grand Accelerateur National a Ions Lourds) ECR4 (Electron Cyclotron Resonance) are described. The detailed calculations of cooling water pressure for the solenoids and the double wall chamber are presented, and at last the features and prospects for the application of this source are reviewed. (author.). 10 refs.; 4 figs.; 2 tabs