DESIR at SPIRAL2 Désintégration, Excitation et Stockage des Ions Radioactifs Decay, excitation and storage of radioactive beams DESIR: facility layout DESIR: scientific objectives BESTIOL LUMIERE DETRAP Transfer beam lines Context BARC/TIFR – DESIR: transfer beam lines Bertram Blank, CEN Bordeaux-Gradignan

DESIR in three parts… DETRAP: BESTIOL: LUMIERE: BEta decay STudies at the SPIRAL2 IsOL facility LUMIERE: Laser Utilization for Measurement and Ionization of Exotic Radioactive Elements DETRAP: DESIR Trapping facilites

BEta decay STudies at the SPIRAL2 IsOL facility The BESTIOL facility BEta decay STudies at the SPIRAL2 IsOL facility M.J.G. Borge, B. Blank et al., CSIC Madrid, CENBG high-precision measurements of 0+-0+ and mirror b decays: quark mixing 21Na, 23Mg, 31S, 39Ca, 66As, 70Br b-decay studies of neutron-rich and neutron-deficient nuclei -> lifetime and decay spectroscopy: magic numbers and astrophysics 81Cu, 103-106Y, 81Cu, 83Zn, 86Ga, 87Ge, 88As, 92Se,100Kr,130Ag,139Sb,142Te -> delayed charged-particle correlations (b2p emission): pairing in nuclei 22Al, 23Si, 26P, 27S, 31Ar, 35Ca, 39Ti -> 12C cluster emission: 112,114Ba: from a decay to fission Gamow-Teller strength distribution: shape coexistence, deformation 78-80Cu, 80-82Zn, 83-85Ga, 93-100Kr, 98,99,101In, 101Sn, 97-99Cd, 130-132In, 129-132Cd, 130Ag Neutron emission probabilities Pn,2n: reactor physics b-decay properties of neutron rich nuclei: reactor decay heat

Future measurements at DESIR 2011 Measurements of ft for heaviest 0+ - 0+ decays Most significant test of nuclear corrections Test CVC over largest range possible

The LUMIERE facility Collinear Laser spectroscopy - spins Laser Utilization for Measurement and Ionization of Exotic Radioactive Elements F. Le Blanc, G. Neyens, P. Campbell et al., IPN Orsay, IKS Leuven, Univ. Manchester Collinear Laser spectroscopy - spins - magnetic & quadrupole moments - change of charge radii N~Z = 28 (48-55Mn, 52-58Fe), 40 (A<89Zr, 88-101Sr, 89-103Y ), 50 (95-102Ag, 100-110Sn), N=82 (78-84Ge, 80-85Ga), N=104 (179-182Au) b-NMR spectroscopy and b-delayed spectroscopy of polarized beams Z=50, N=82: 132Sn region: 127-133In purification by laser ionisation: CRIS method

Laser spectroscopy in the 100Sn region CRIS type beam line 100Sn M. Bissel et al. charge radii and moments for the most exotic isotopes

DETRAP: Mass measurements with the MLL trap P. Thirolf et al., LMU Munich multi-reflection TOF spectrometer for beam purification Penning trap for mass measurements Binding energy of N~Z nuclei: 94,95,96Cd, 100Sn from S3 Masses of A~100 nuclei: 97-100Kr, 99-102Rb, 101,102Sr, 102,103Y superallowed and mirror b-decay Q values: 66As, 70Br, 78Nb, 82Tc,… 21Na, 23Mg, 25Al, 27Si, 29P, 31S, 35Ar, 37K, 39Ca, 41Sc Masses of r-process nuclei: 70,81Cu, 82Zn,100Kr, 130Ag,130-132Cd,131-133In Masses of transactinide isotopes with S3: Z~104, 106 MLL trap commissioning at Garching

Measuring the heaviest masses 257Rf 253No linking the super-heavy a decay chains with direct mass measurements testing the mass models for super-heavy elements extrapolating into the unknown region P. Thirolf et al.

DESIR physics cases: LOIs for DESIR Collinear laser spectroscopy b-delayed g spectroscopy of laser-polarized beams 257Rf b-n angular correlation: LPCtrap Mass measurements: MLLTrap 179-182Au b-delayed charge part. emission 21 LOI’s for experiments at DESIR (Trap-assisted) b-decay, TAS N=Z line 112,114Ba 98,99,101In,100,101Sn 138,139Sb,139-142Te 94,95Ag, 96,97-99Cd 127-133In 129-130Ag, 130-132Cd RIBs from: Fragmentation (S1) n-induced fission (S2) light particle transfer (S2) fusion-evaporation (S3) 89-102,103-106Y A<89Zr 66As, 70Br 88-101,102Sr 93-97-100Kr 56,58Zn 90-92Se 80-85,86Ga, 78-84,86-87Ge, 88As 78,79,80,81Cu, 80,81,82,83Zn 8He, 19Ne, 21Na, 23Mg, 25Al,27Si, 29P, 31S, 35Ar, 37K, 39Ca, 41Sc 22Al, 23Si, 26P, 27S, 31Ar, 35Ca, 39Ti 8He Possible interests from VECC

Beam delivery to DESIR GANIL – SPIRAL1 (S1) DESIR S3 Production building SPIRAL2 (S2) S3 Low-energy beams from: S1, S2, S3 wide range of different isotopes state-of-the-art equipment

Possible DESIR hall layout N -TOF detector PIPERADE + TAGS LPCTrap MLLTrap TETRA Silicon Cube BEDO LUMIERE TONNERRE BELEN Identification station

DESIR beam lines: BARC-TIFR collaboration SP2 LINAC DESIR GANIL Production building Level 0: Hall (1500 m2) Level -1: technical rooms (550 m2) Transfer beam lines beam emittance: up to 20 p.mm.mrad beam energy: 10 keV < E < 60keV length of beam lines: ~140 m

Collaboration BARC/TIFR – SPIRAL2/DESIR December 2009: first discussion with S.K. Gupta et al. March 2010: signature LIA between France (CNRS, CEA, GANIL) and India (BARC + TIFR) October 2010: First LIA meeting at GANIL: BARC/TIFR contribution to DESIR beams lines Design des lignes : optics, diagnostics, control, pumping system, safety and security (IPNO, CENBG, CSNSM, GANIL, BARC) Construction and tests of a prototype section (IPNO, CENBG, GANIL, BARC) Construction mechanical parts (BARC, IPNO, CENBG) Installation at GANIL (GANIL, BARC, IPNO, CENBG) Commissioning (GANIL, CENBG, BARC) Control system programming with EPICS (?) Cost estimate: Total : ~3822 k€ BARC contribution : 826 k€ optical elements, beam pipes, support structures 13

Transfer lines optics calculations: S2 adaptation point of SPIRAL2 to adaptation point DESIR RMSx,y=3mm, ex,y RMS=20p.mm.mrad, DE/E=0.004pm, E=60kV, M=122 (ex.: 122Sn1+) Production adaptation DESIR adaptation L. Perrot et al., IPN Orsay

Collaboration BARC/TIFR – SPIRAL2/DESIR BARC/TIFR proposal (S.K. Gupta et al.): Electrostatic steerers &  quadrupole triplets  ~ 40 Electrostatic benders         7 Two / three way switchyards               6 Support structure for above components &  140 m of beam lines tubes

DESIR: exciting physics opportunities: Laser spectroscopy Decay studies Trap (assisted) measurement large variety of beams due to different production schemes state of the art equipment… possibilities for equipemnt from India large international collaboration DESIR letter of intent (Oct. 2006): 97 scientists DESIR technical design report (Jan. 2010): 111 scientists DESIR related LOIs for SPIRAL2 (Jan. 2011): 132 scientists collaboration with and contribution from BARC/TIFR, VECC and others is must welcome

DESIR collaboration ~120 scientists and engineers ~35 different institutions ~15 countries

SHIRaC cooler and buncher from drawings to reality… And here is the present status of the Shirac 2 prototype. You can see here, the chamber for the RFQ, on the high voltage platform, and the faraday cage under construction. The whole thing should be completed in April 2010 and then, final tests will have to be performed with high intensity beams. Another important task that remains is to define requirements for an adaptation of the apparatus to a hot nuclear environment. Completed end of 2010 Test with high intensity beams 2011 Adaptation to nuclear environment Interfacing with HRS G. Ban et al., LPC Caen

The high-resolution separator HRS Final design of the HRS which includes: mecanical contraints radioprotection considerations optical needs Resolution M/DM ≈ 30000 Beam envelope in X: Beam envelope in Y: T. Kurtukian Nieto et al., CENBG

Double Penning trap PIPERADE S. Grévy, M. Gerbaux, D. Lunney et al., CENBG, CSNSM not for mass measurements beam purification for trap-assisted spectroscopy high-precision measurements ultra-pure samples Si Cube b-g spectroscopy neutron arrays TAS

Super-allowed 0+-0+ Fermi decays 2 F V M g K ft = GT A + T1/2 QEC BR 0+ Ft = ft (1 + dR’ ) (1 – dc + dNS ) = K 2 F V M g (1 + DR) gv = gm * Vud verify conserved vector current (CVC) hypothesis

DETRAP: Fundamental interactions at the LPCTrap ne nucleus q b-n angular correlation measurement in a Paul trap: -> exotic currents in the weak interaction: 6He, 8He , 19Ne , 35Ar -> mirror b decay studies: 21Na,23Mg,25Al,27Si,29P,31S,35Ar,37K,39Ca,41Sc LPCTrap setup at GANIL/SPIRAL trapping & decay measurement Pl. Sc. DSSSD Beam µCP cooling & bunching in a RFQ µCP E. Liénard et al., LPC Caen 23

Precise measurements of b-n angle b-n angular correlation within the SM x : Fermi fraction; r : GT/F mixing ratio a = -1/3 6He Future measurements: 8He , 19Ne , 35Ar X. Fléchard et al., LPC Caen

DESIR: a low-energy facility for GANIL RFQ & HRS http://www.cenbg.in2p3.fr/desir

SPIRAL1 beams Projectile or target fragmentation at 95 MeV/A main interest: very neutron- and proton-rich light nuclei 1+  n+

SPIRAL2 beams UCx IS 2H n Target HI Fission, fusion evaporation, DIC Converter Fission, fusion evaporation, DIC main interest: fission products medium-mass proton-rich nuclei e.g. 36Ar @ 20 MeV/A

S3 beams Fusion-evaporation reactions at Coulomb Barrier, DIC LISOL main interest: very heavy nuclei N=Z nuclei very short-lived isotopes refractory elements LISOL

Transfer lines optics calculations: S1 adaptation point of LIRAT (-1.75m ) to adaptation point DESIR (+1.5m). RMSx,y=3mm, ex,y RMS=20p.mm.mrad, DE/E=0.004pm, E=60kV, M=122 (ex.: 122Sn1+) LIRAT adaptation DESIR adaptation L. Perrot et al., IPN Orsay 29

Transfer lines optics calculations: S3 adaptation point of S3 (-8.5m ) to adaptation point DESIR (+1.5m). RMSx,y=3mm, ex,y RMS=20p.mm.mrad, DE/E=0.004pm, E=60kV, M=122 (ex.: 122Sn1+) S3 adaptation DESIR adaptation L. Perrot et al., IPN Orsay 30

EQUIPEX Funding request Phase 1 (July 2012-June 2015): investment costs Work packages Equipment cost (k€) Management cost (k€) Total (k€) WP0: Project coordination 82.5 WP1: Buildings 7415.7 WP2: Beam lines 5460 17.2 5477.2 WP3: Identification station 203.1 10 213.1 WP4: General purpose Ion buncher 390 90.2 480.2 WP5: User facilities 353.1 61.8 414.9 WP6: Pluridisciplinary and industrial prospective 5 17.1 22.1 Total (Phase1) 13826.8 278.8 14105.6

EQUIPEX Funding request Phase 2 (July 2015 - December 2019): running costs Work packages Operation cost (k€) Management cost (k€) Total (k€) WP0: Project coordination 93 96.7 WP1: Buildings 542.6 564.3 WP2: Beam lines 225 234 WP3: Identification station 9 9.4 WP4: General purpose Ion buncher 18 18.7 WP5: User facilities 162 1.2 169.7 WP6: Pluridisciplinary and industrial prospective 5 11.4 17.0 Total (Phase2) 961.6 105.6 1109.8 answer in January 2012….