SPIRAL2 at GANIL SPIRAL2 Phase 1 and Phase 2 New equipment at SPIRAL2 DESIR facility DESIR physics programme. Bertram Blank CEN Bordeaux-Gradignan

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1 SPIRAL2 at GANIL SPIRAL2 Phase 1 and Phase 2 New equipment at SPIRAL2 DESIR facility DESIR physics programme Bertram Blank CEN Bordeaux-Gradignan Arctic FIDIPRO-EFES Workshop, Saariselkä, Finland April 20-24, 2009

2 Existing GANIL facility DESIR S3 RIB PRODUCTION Phase /4 NFS Accelerator Phase

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4 ISOSPIN DEGREES OF FREEDOM IN NUCLEAR FORCES Position of drip-lines Heavy and Super Heavy Elements Equation of State Role of Isospin N=Z rp-process Spins&Shapes Spins & Shapes Haloes & Structures in the Continuum r-process path Shell structure far from stability Neutrons for science Atomic & solid state physics Radiobiology & Isotope production

5 : 19 Letters of Intent, 600 physicists from 34 countries : TDR for big instrumentation at SPIRAL2 DESIR S 3 NFS AGATA PARIS Gamma Array GASPARD Particle Array FAZIA ACTAR EXOGAM 2

6 Désintégration, excitation et stockage d ions radioactifs (Decay, excitation and storage of radioactive ions) GANIL SPIRAL1 (S1) DESIR Low-energy beams from: S1, S2, S3 S3 Production building SPIRAL2 (S2)

7 Projectile or target fragmentation at 95 MeV/A main interest: very neutron- and proton-rich light nuclei 1+ n+

8 deuterons 40 MeV C neutrons UCx 2000 C diffusion / effusion Source 1+ n+ 2 H 2 H Fission, fusion evaporation, DIC Converter main interest: - fission products - medium-mass proton-rich nuclei 2 H HI n n UCx IS Target IS UCx IS Target IS

9 Fusion-evaporation reactions at Coulomb Barrier, DIC main interest: - very heavy nuclei - N=Z nuclei - very short-lived isotopes - refractory elements Gas catcher LISOL

10 RFQ-HRS to DESIR m/ m = SPIRAL2 Production Identification station to CIME

11 to DESIR Identification station RFQ-HRS to CIME Optical studies for double HRS are under way: aim is m/ m = for 2 mm mrad Teresa Kurtukian Nieto, CENBG

12 Length = 70 cm Radius = 3mm Florian Duval, Gilles Ban, Dave Lunney

13 Normalized intensity (%) Derivated intensity V4 (V) V4 (V) 50 Gas : Helium at 10-2 mbar ΔE 0.18eV (before reacceleration) Derivated intensity V4 (V)

14 Divergence (mrad) ,0 746,3 497,5 248,8 0 Divergence (mrad) Position (mm) Without gas : 12 π.mm.mrad Position (mm) Helium at 10 2 mbar : 4.75 π.mm.mrad keV 1 60keV Still under investigation : RF heating Residual gas effect outside the RFQ section Charge-exchange process

15 Kitchen + WC (on top of CR) Laser room (mezzanine) SAS Collinear Laser spectroscopy -NMR Penning trap + Decay setup RFQ buncher MLL trap Paul trap General purpose Beam from Level -1 LUMIERE BESTIOL General purpose TAS Double MOT Neutron ditch Electronics Desk Access Crane access to basement 5 m IS LN2 Gas & waste storage off-line source 1 Identification station with tape Control room DAQ room Meeting room (on top of DAQ) off-line source 2

16 Work shop Radio lab storage Beam from Production building, S3 and SPIRAL1 X Assembly Room 3 free Supply Gray Room 1 Gray Room 2 Storage 2 Assembly Room 1 HV supplies Electricity Storage 1 Assembly Room 2 Neutron ditch Identification and radioprotection measurements Control Racks Interfaces Crane access to basement 5 m Limits of DESIR hall

17 RFQ SHIRAC: HRS: DESIR building: General purpose ion buncher GPIB + stable ion sources: Identification station: Beam transport lines: Safety and security: Command / Control, diagnostics: Gilles Ban Bertram Blank Franck Delalee Pierre Delahaye Philippe Dessagne Francois Le Blanc Jean-Charles Thomas Stéphane Grévy

18 submitted on December 19, 2008 presented to SPIRAL2 SAC on January 29, 2009 strongly supported by SPIRAL2 SAC. about 100 pages of technical description of DESIR facility and its equipment co-signed by 111 physicists and engineers of 15 countries contains a general description of buildings and interfaces description of major installations like traps, spectroscopy setups etc report available on DESIR web page (

19 LUMIERE Laser Utilisation for Measurement and Ionization of Exotic Radioactive Elements Collinear Laser spectroscopy: - spins - magnetic moments - quadrupole moments - change of charge radii F. Le Blanc,Orsay G. Neyens, Leuven P. Campbell, Manchester -NMR spectroscopy: - nuclear gyromagnetic factor - quadrupole moment N=50, N=64, N=82, Microwave double resonance in a Paul trap: - hyperfine anomaly and higher order momenta (octupole and hexadecapole deformation) Eu, Cs, Au, Rn, Fr, Ra, Am.

20 BEta decay ST BESTIOL STudies at the SPIRAL2 IsOL facility Decay studies with halo nuclei M.J.G. Borge,, Madrid Clustering studies in light nuclei -delayed charged-particle emission: e.g. proton-proton correlation Super-allowed decays and the standard model of electro-weak interaction Deformation and Gamow-Teller distribution 2n correlations, P n and nuclear structure (r-process)... setup, B. Blank (Bordeaux) TAS, J.L. Tain (Valencia) TETRA, Y. Penionzhkevich (Dubna)

21 MLLTRAP P. Thirolf, Munich High-accuracy mass measurements - unitarity of CKM matrix (V ud ): 50 Mn, 54 Co with M/M~ transuranium isotopes (beams from S 3 ): M(Z>102) In-trap spectroscopy: - conversion electron and spectroscopy: shape coexistence Trap-assisted spectroscopy - decay studies of isomerically pure radioactive species Set-up being installed at MLL/Garching

22 KVI atomic trapping facility H. Wilschut,, Groningen New limits on scalar and tensor contributions in the weak interaction New limits on time-reversal violation in beta decay Systematic of atomic parity non-conservation in a long isotopic chain Experimental set-up at KVI

23 Standard planning; one production cave DESIR: 29 weeks of RIB/year: 10 weeks of RIB from SPIRAL2, 4 weeks from S3, 15 weeks from SPIRAL1

24 Phase I Phase II

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27 Main parts: estimated costs fund available RFQ and HRS «building»: included in SPIRAL2 project DESIR building + interfaces: 6000 k 2000 k (CPER) RFQ: 450 k +? 320 k (CPER) HRS: 2000 k +? - beam lines: 4500 k - off-line sources + GPIB: 290 k - identification station: 140 k - control / command, diagnostics: 400 k together with SPIRAL2

28 RFQ: on-going tests, study of nuclearisation, study of final version of RFQ HRS: detailed optical study of new ALPHA version, detailed mechanical study beam lines: preliminary design, cost estimate, detailed design study stable ion sources: definition, purchase GPIB: study and construction Identification station: preliminary design, detailed design, construction DESIR building: like SPIRAL2 Phase 2 construction program. decision about construction at latest mid 2010