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The first steps to EURISOL

The first steps to EURISOL. Peter Butler University of Liverpool on behalf of the EURISOL Design Study. Eurisol. 1 GeV p and other light ions 100kW direct production 5 MW spallation n target 0  150 MeV/u RIB

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The first steps to EURISOL

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  1. The first steps to EURISOL Peter Butler University of Liverpool on behalf of the EURISOL Design Study Zakopane 2006

  2. Eurisol 1 GeV p and other light ions 100kW direct production 5 MW spallation n target 0  150 MeV/u RIB x 105 increase in yield for 90Krproducts from existing European RIB (e.g. SPIRAL, REX-ISOLDE) R&D will benefit 2nd generation ISOL projects: HIE-ISOLDE, SPIRAL II, SPES, MAFF Zakopane 2006

  3. Selected ISOL facilities Zakopane 2006

  4. SPIRAL II at GANIL, Caen See talk of Gilles De France Zakopane 2006

  5. SPES at INFN, Legnaro 1013 fissions/swith proton driver 1014 fissions/swith deuterons (upgrade) ~108 132Sn ions/s expected (0.02 pnA) 15 MeV/u with ALPI SC linac See talk of Fabiana Gramegna Zakopane 2006

  6. HIE-ISOLDE at CERN Increase in REX energy from 3 to 10 MeV/u (first step in increase to 5.5 MeV/u) Increase proton intensity 2  6 A (LINAC4, PSB upgrade) - target and front-end upgrade RFQ cooler, REX-TRAP, REX-EBIS REX-ECR upgrades Super-HRS for isobaric separation RILIS upgrade & LIST Zakopane 2006

  7. EURISOL layout SPL or LINAG 150 MeV/a (for 132Sn) HIE-ISOLDE or CIME Zakopane 2006

  8. LOUVAIN-LA- NEUVE, HRIBF, ISAC1, REX-ISOLDE, SPIRAL, EXCYT 2nd GENERATION RIB UPGRADING some M€ tens of M€ ~100 M€ ~600 M€ - 950 M€ ~105 p/s ~107 p/s ~108,9 p/s ~pnA tens 100kW 2010-2015 up to 5 MW after 2015 few kW 2003 10-20 kW 2005-8 RIBF-Riken EURISOL phase I RIA FAIR 2012-2013 9/2006 We stand here NETWORKING of complementaryfacilities (HIE-ISOLDE, SPIRALII, SPES, MAFF) From: Graziano Fortuna, INFN Zakopane 2006

  9. EU 6th framework Design StudyFeb 2005 - Feb 2009(conceptual DS in EU 5th framework) • Detailed engineering oriented studies and technical prototyping work • 20 participants from 14 countries • 21 contributors from Europe, Asia and North America • Total Cost : 33 M€ (incl. 500 person-years) • Contribution from EU : 9 M€ • (will apply for 7th framework funding in 2009) Zakopane 2006

  10. EURISOL DS tasks Zakopane 2006

  11. Driver accelerator 1 GeV 5 MW proton beam 3He at 2 GeV, deuterons at 250 MeV, heavy ions of A/Q=2 at 125AMeV Zakopane 2006

  12. 100 kW direct target Targets -Actinide Targets (Carbide) SiC,UC2+C, THC2+C W-converter, Moderator & Reflector -Metal Foil target (solid) Ta, Nb -Oxide powder (Fibre) BeO + converter Insulating materials at low de/dx -Molten metals (liquid) Vapour condensation Ion-Sources, Effusion -Mono-ECR -RILIS, Surface -FEBIAD Elements Fr, Hg, Sn, Ar, Lanthanides, Be, Ne, He, Hg “NuPECC” (Be, Ar, Ni, Ga, Kr, Sn, Fr ) Zakopane 2006

  13. Reflector UCx/BeO Target Reflector Protons 16 cm Hg Target UCx/BeO Target Protons Target container 4 cm Hg Jet 68 cm UCx/BeO Target Reflector Reflector 40 cm High power (multi-MW) target • Hg-loop: Reasonable charged particle confinement and power densities. • High neutron fluxes in the fission target, confined within the assembly. • Proven design (SNS and ESS), technically simpler concept. • Hg-jet: Very large high-energy proton escapes: Radioprotection issues, charged-particle contamination in the fission target . • Higher and harder neutron spectrum: enhanced fission densities (4 times larger). • Technical difficulties to implement. Zakopane 2006

  14. Radioisotope Yields in high power Target Isotopic yields (Ions/cm3/s/MW of beam) Multiply by 104 for 5 MW actual target Divide by 102 for post-acceleration Zakopane 2006

  15. Activity in Hg 40 years 4 MW irradiation (5000 h/year) ISABEL-ABLA: _______ CEM: - - - - - - Zakopane 2006

  16. Beam preparation • Several of these low energy beam lines • High resolution separator for isobaric purity Zakopane 2006

  17. SC post-accelerator linac • Design based on the solutions adopted for Spiral II (A/q=3) • Normal conducting injector to be compared with SC injector • SC accelerating cavities with no strippers; multiple q acceptance • Option of beam sharing to be considered Zakopane 2006

  18. Beam layout Zakopane 2006

  19. Beta-Beams 2 x 1013 ions/s 6He and 18Ne From: Mats Lindroos, CERN Zakopane 2006

  20. Physics requirements Zakopane 2006

  21. Physics & Instrumentationsub-tasks & leaders Zakopane 2006

  22. EURISOL TOWN MEETING November 27-28 2006 at CERN See www.eurisol.org Open meeting on Users’ Group for European ISOL Zakopane 2006

  23. FINIS Zakopane 2006

  24. Production of extremely neutron-rich isotopes (two-step schemes: fission + cold fragmentation) Secondary fragmentation Eurisol scheme n,p + 238U  132Sn + Be  X Test experiment at GSI S0-S2:238U(950 A MeV)+Pb  124-132Sn S2-S4:124-132Sn + Be  X From J. Benlliure, Santiagode Compostela Zakopane 2006

  25. 1 GeV Extraction possible scheme • 3 splitting stations • 4 simultaneous users of proton beams: • 1  4 MW line • 3  100 kW line • 1 line specialized for 2 GeV, 3He++ to be used alone 100 kW H+ 4 MW H- 100 kW H+ B stripper 3He2+ at 2 GeV 100 kW 1 GeV/q foil stripper 100 kW H+ Zakopane 2006

  26. Schematic of high power target Zakopane 2006

  27. High energy beam splitters • magnetic stripping at 1 GeV of a small part of the H- beam to H0 • bending of H- with a magnetic dipole • stripping of H0 to H+ by means of a stripper foil • H- to target 1 and H+ to target 2(3,4). • The spilled beam intensity can be controlled by adjusting the field strength of the magnetic stripper. Zakopane 2006

  28. Kr yields Zakopane 2006

  29. New extraction scheme • 1 GeV/q • 1 line 04 MW H- • 3 lines 0100 kW H+ • 1 line 04 MW 3He2+ • Possibility of simultaneous operation of the lines with H- and H+ beams by using high energy beam splitters • 250 MeV/q • 1 line • 0125 kW deuterons • all achievable A/q=2 beams Zakopane 2006

  30. EURISOL yields extrapolated from ISOLDE Zakopane 2006

  31. Comparative yields (before charge-breeding) Comparative EURISOL and FAIR (SIS 200) yield calculations for doubly-magic nuclei far from stability Zakopane 2006

  32. SPIRAL II yields Zakopane 2006

  33. MAFF at FRMII, Munich Power in target: 3 kW  ~1014 neutrons/cm2/s High thermal neutron cross section (s = 580 barns), so only 1-2g of 235Utarget needed ~1014 fissions/s Zakopane 2006

  34. Europe 2nd Generation ISOL Zakopane 2006

  35. RIB Physics Reach FAIR EURISOL Zakopane 2006

  36. European Roadmap for RIB facilities Zakopane 2006

  37. Physics reach of beta-beam Zakopane 2006

  38. Specimen Experiments Ft-values of 0+ - 0+ superallowed Fermi beta transitions and T = 1/2 mirror transitions Correlation measurements in nuclear beta decay to search for physics beyond the standard model In-beam spectroscopy of heavy elements Synthesis and decay of the heaviest elements Optical spectroscopy of the heaviest elements Neutron capture cross sections of radioactive nuclei The r-process path between the N=50 and N=82 shells Ground-state two-proton radioactivity Super-allowed beta decay and the weak-interaction standard model Beta-delayed two-neutron emission Structure beyond the neutron drip line : 26-28O Mass of 78Ni ground state Magnetic moments of isomers in the 78Ni region Charge radius of 78Ni 44Ti Abundance as a Probe of Nucleosynthesis in Core Collapse Supernovae One or two neutron or well defined cluster (like alpha-particle) breakup Isospin Dependence of Correlations Nuclear Matter Incompressibility The density dependence of the symmetry energy Neutron-proton effective mass splitting Isospin dependent phase transition Isospin fractionation and isoscaling Zakopane 2006

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