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Eurisol- a preliminary design study of the next-generation european isol radioactive nuclear beam facility

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The EURISOL RTD Project aims at a preliminary design study of the next-generation European ISOL Radioactive Nuclear Beam (RNB) Facility, which should extend and amplify, beyond the year 2010, the exciting work presently carried out at the first-generation ISOL/RNB facilities, including some of the contractors of the present programme (SPIRAL, GANIL and REX ISOLDE/CERN). During the second year of the Contract, most of the tasks defined in the Project Programme have been completed, along the lines of the general options for the facility which had been taken during the first year: - key experiments.

The final report for this task is essentially completed. It includes the following chapters: the proton and neutron driplines; radioactive decays far from stability; reactions involving neutron-rich beams; analogue transitions in mirror nuclei; nuclear reactions (one- and two-particle transfers, multinucleon transfers) with radioactive beams; changes in the shell structure; halo structures; high-spin physics with exotic nuclei; isospin effects on dynamics and thermodynamics of hot nuclei and of nuclear matter; super heavy nuclei; nuclear astrophysics; tests of the Standard Model and of fundamental conservation laws; nuclear solid state physics; - driver accelerator.

The final report for this task has been completed, synergies with other major European projects have been identified, and the necessary R &D's still to be carried out before a full engineering design of the facility can be made have been defined. - target and ion sources. Some work has been completed on various topics: the optimal production of very high neutron fluxes; the corresponding target for neutron production; the fission target, and in particular the minimization of the decay losses; and the gas-target. The final report for this task still has to be elaborated; - mass-selection system and post-accelerator. The final report for this task ha s been completed, the various possible post-accelerators, cyclotrons and linacs, have been studied in detail and compared, a new concept of a low-energy mass separator has been proposed, and the necessary R&D's have been identified; - instrumentation. The final report of this task group is essentially completed; it includes the instrumentation needed for studying nuclear ground state properties, nuclear spectroscopy and structure, nuclear reactions, ion and charged particle spectrometers, data acquisition and electronics.

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