Developments of ion source for secondary beam and experimental facility

A fission-product ion beam facility at the JAERI-proton-linac facility is proposed. This proposed facility is composed of an on-line isotope separator (ISOL) front-end coupled to a tandem accelerator which is combined by a superconducting linear accelerator to raise the energy of a fission-product ion beam up to 10 MeV/u. To ionize the fission products produced by proton spallation and/or neutron-induced fission of uranium, a negative surface ion source and the FEBIAD ion source are chosen. In this paper, the general concept of the facility, the ion-source development work necessary for the ISOL and the calculations of expected yields for selected examples are given. (author)