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
Existing GANIL facility DESIR S3 RIB PRODUCTION Phase 2 2013/4 NFS Accelerator Phase 1 2012
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 www.ganil.fr/research/developments/spiral2/
2006-2007: 19 Letters of Intent, 600 physicists from 34 countries 2008-2009: TDR for big instrumentation at SPIRAL2 DESIR S 3 NFS AGATA PARIS Gamma Array GASPARD Particle Array FAZIA ACTAR EXOGAM 2
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)
Projectile or target fragmentation at 95 MeV/A main interest: very neutron- and proton-rich light nuclei 1+ n+
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
Fusion-evaporation reactions at Coulomb Barrier, DIC main interest: - very heavy nuclei - N=Z nuclei - very short-lived isotopes - refractory elements Gas catcher LISOL
RFQ-HRS to DESIR m/ m = 20000 SPIRAL2 Production Identification station to CIME
to DESIR Identification station RFQ-HRS to CIME Optical studies for double HRS are under way: aim is m/ m = 20000 for 2 mm mrad Teresa Kurtukian Nieto, CENBG
Length = 70 cm Radius = 3mm Florian Duval, Gilles Ban, Dave Lunney
140 50 120 0 Normalized intensity (%) 100 80 60 40 20 Derivated intensity -50-100 -150-200 0-250 -20 0 20 40 60 80 V4 (V) -300 0 20 40 60 80 V4 (V) 50 Gas : Helium at 10-2 mbar ΔE 0.18eV (before reacceleration) Derivated intensity 0-50 -100-150 -200-250 -300 40 41 42 43 44 45 46 47 48 49 50 51 52 V4 (V)
4 1990 1741 4 8060 7053 1493 6045 Divergence (mrad) 2 0-2 -4 1244 995,0 746,3 497,5 248,8 0 Divergence (mrad) 2 0-2 -4 5038 4030 3023 2015 1008 0-6 -6-8 -6-4 -2 0 2 4 6 8 Position (mm) Without gas : 12 π.mm.mrad -8-6 -4-2 0 2 4 6 8 Position (mm) Helium at 10 2 mbar : 4.75 π.mm.mrad 4.75 π.mm.mrad @ 3keV 1 π.mm.mrad @ 60keV Still under investigation : RF heating Residual gas effect outside the RFQ section Charge-exchange process
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
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
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
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 (www.cenbg.in2p3.fr/desir)
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.
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)
MLLTRAP P. Thirolf, Munich High-accuracy mass measurements - unitarity of CKM matrix (V ud ): 50 Mn, 54 Co with M/M~10-10 - 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
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
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
Phase I Phase II
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
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