FISSION FRAGMENT ACCELERATORS FOR THE GRENOBLE AND MUNICH HIGH-FLUX REACTORS - PIAFE WORKING GROUP OF ACCELERATORS

Accelerators for the Munich and Grenoble high flux reactors are under design [1,2]. These accelerators will be able to deliver intense beams of very neutron rich fission fragments out of a target ion source ins ide the reactor tube for the production of super heavy elements [3]. I n order to obtain an efficient acceleration in a LINAC, charge breedin g of the 1(+) ion beam from the reactor to a q/A greater than or equal to 0.16 is required. Depending on the scheme of charge breeding the L INAC can work with 10% duty cycle with a final energy between 3.7 and 5.9 MeV/u. Two sources which can deliver highly charged ions are to be considered as possible charge breeders: the Electron Beam Ion Source (EBIS) and the Electron Cyclotron Resonance Ion Source (ECRIS). The LI NAC will consist of an Radio Frequency Quadrupole (RFQ) accelerator, t hree interdigital H-type (IH) structures and two seven-gap resonators to vary the final energy of the ions. The whole concept, the charge br eeding and the LINAC parameters will be discussed carefully in this pa per. (C) 1998 Elsevier Science B.V.