Abstract

In collaboration with Japan Atomic Energy Agency (JAEA) and High Energy Accelerator Research Organization (KEK), we have been constructed an ISOL-based radioactive ion beam facility, Tokai Radioactive Ion Accelerator Complex (TRIAC), at JAEA – Tokai. This facility consists of a Charge-Breeding 18GHz Electron Cyclotron Resonance Ion-Source (CB-ECRIS), the Split-Coaxial Radio-Frequency Quadrupole (SCRFQ)- and Interdigital-H (IH)-type linacs. An Isotope Separator On-line (JAEA–ISOL) is connected to the CB-ECRIS as the injector of radioactive ions which are produced in proton-induced fission of uranium and heavy-ion reaction. The primary beams are provided from the JAEA Tandem Accelerator. Radioactive singly-charged ions from the JAEA–ISOL are bred to q/A⩾1/7 in the CB-ECRIS and then multi-charged ions are accelerated with the linac-complex from 2keV/u to the energy between 0.14 and 1.1MeV/u. So far, we successfully accelerate 8Li+ and 138Xe20+, the acceleration energy of 1.1MeV/u was achieved. From October 2005, some radioactive ion beams of 1.1MeV/u have become available for users.

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