European Isotope Separation On-Line Radioactive Nuclear Beam Facility A preliminary design study of the next- generation European ISOL RNB facility GANIL, Caen, France Chalmers Univ. Techn., Göteborg, Sweden KULeuven, Leuven, Belgium GSI, Darmstadt, Germany INFN, Italy IPN, Orsay, France CEAN/DAPNIA, Saclay, France ISOLDE/CERN, Genève, Switzerland Accelerator Lab., Jyväskylä, Finland RAL, Chilton Didcot, United Kingdom January 1, 2000 – December 31, M€ RTD on crucial problems2002 – 2006 detailed design, construction2007 – 2010

European Isotope Separation On-Line Radioactive Nuclear Beam Facility key experiments : mostly neutron-rich  fission proton-rich also  spallation driver : proton 1 GeV 5 mA 5 MW DC other particles A/q = 2 electrons target-ion source : neutron production fission (  f/s) direct use (  100 µA) post-accelerator :mass selection low energy (“à la ISOLDE”) medium energy (10 MeV/A) high energy (100 MeV/A up to A = 132) instrumentation :cf. key experiments General options (Steering Committee) Town MeetingsOrsay, Nov. 6-7, 2000 Abano Terme, Jan , 2002

European Isotope Separation On-Line Radioactive Nuclear Beam Facility 1. key experimentsBjorn Jonsson 2. driver acceleratorAlex Mueller 3. targets and ion sourcesHelge Ravn 4. mass-selection system and postaccelerator Marie-Hélène Moscatello 5. instrumentation Juha Aystö 6. cost estimatestask group leaders + 7. Final reportJohn Cornell + Jean Vervier _________________________ RTDs’ on crucial technical points synergies with other major European programmes existing installations site independant Tasks

The Working Group recognises the importance of radioactive nuclear beam facilities for a broad programme of research in fundamental nuclear physics and astrophysics, as well as applications of nuclear science. A new generation of high-intensity RNB facilities of each of the two basic types, ISOL and In-Flight, should be built on a regional basis. European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Key experiments (Bjorn Jonson) nuclear structure far from stability proton and neutron drip lines radioactive decays far from stability changes in the shell structure halo nuclei heavy and superheavy nuclei nuclear reactions with RNBs’ one-,two, multiple-nucleon transfers high-spin physics with RNBs’ nuclear Equation Of State for different isospins nuclear astrophysics tests of the Standard Model and of fundamental conservation laws ______________________________________________ Fragmentation of very intense (~ pps) neutron-rich RNBs’ EPAX 2 ABRABLAGSI COFRA European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Driver accelerator (cf. Alex Mueller) 1 GeV, 5 mA, 5 MW superconducting proton linac RTDs’ synergies (ESS, TNW, factory …) acceleration of heavy ions with A/q = 2 electron linac European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Target-ion source assembly (cf. Helge Ravn, Ulli Koester) neutron production neutron producing target for MW beam powers fission target delays in diffusion, effusion intensity limitations in a gas cell _______________ CHARGE BREEDING n + TARGISOLrelease properties IONCATCHERslowing down of RNBs’ stopping and extraction in a gas cell European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Mass-selection system and postaccelerator (Eric Baron, Marie-Hélène Moscatello) mass-separator at low energy based on time-of- flight cyclotrons two room-temperature cyclotrons superconducting compact cyclotron superconducting separated-sector cyclotron superconducting linac SC cavities independently phased multiple charge acceleration cost / % of transmission European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Instrumentation (Juha Aystö) ground-state properties masses, moments, matter and charge radii, fundamental interactions and symmetries nuclear structure studies in-beam , e -,  -delayed neutrons, tagging  -ray tracking technique : Advanced GAmma Tracking Array charged particles and neutrons Gamma Ray And Particle Array Four A and Z Identification Array neutrons, fission fragments, targets, electronics ions and charged-particle spectrometers gas-filled, recoil-mass, ray-tracing muonic and antiprotonic radioactive atoms electronics and data-acquisition European Isotope Separation On-Line Radioactive Nuclear Beam Facility

Perspective Cost estimates Synergies Design Study Task Group reports Final report European Isotope Separation On-Line Radioactive Nuclear Beam Facility