Abstract
A superconducting electron cyclotron resonance (ECR) ion source is going to be installed at the Laboratorio Nazionale del Sud (LNS) as an injector for the K-800 superconducting cyclotron in order to give high intensity light ion beams to be used for the exotics at the cyclotron Tandem (EXCYT) facility. The goal will be the production of some pμA beams of O7+, O8+, C5+, C6+, Ne9+, Ne10+, and 48Ca14+ at 70–80 MeV/n to be sent onto a thick target to produce recoils. The recoils will diffuse to a source located on the Tandem injector. Such a source will be a surface ionization source or a microwave discharge source followed by a charge exchange canal. The outcoming beams are then accelerated by the Tandem and transported to the experimental areas. The role of the negative sources for the secondary beams is fundamental, because efficiencies as high as possible are needed, and the beam emittance has to be matched with the mass separator, in order to get high mass resolution. The primary source and the axial injection beam line designed for intense beams as well as the secondary beam source are being described.
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