DESIR at SPIRAL 2 Désintégration Excitation et Stockage

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DESIR at SPIRAL 2 Désintégration, Excitation et Stockage des Ions Radioactifs Decay, excitation and DESIR at SPIRAL 2 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… BESTIOL: BEta decay STudies at the SPIRAL 2 Is. OL DESIR in three parts… BESTIOL: BEta decay STudies at the SPIRAL 2 Is. OL facility LUMIERE: Laser Utilization for Measurement and Ionization of Exotic Radioactive Elements DETRAP: DESIR Trapping facilites

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

Future measurements at DESIR 2011 • Measurements of ft for heaviest 0+ - 0+ 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 Laser Utilization for Measurement and Ionization of Exotic Radioactive Elements F. The LUMIERE facility 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 Ø Collinear Laser spectroscopy - spins - magnetic & quadrupole moments - change of charge radii N~Z = 28 (48 -55 Mn, 52 -58 Fe), 40 (A<89 Zr, 88 -101 Sr, 89 -103 Y ), 50 (95 -102 Ag, 100 -110 Sn), N=82 (78 -84 Ge, 80 -85 Ga), N=104 (179 -182 Au) Ø b-NMR spectroscopy and b-delayed spectroscopy of polarized beams - spins - magnetic & quadrupole moments Z=50, N=82: 132 Sn region: 127 -133 In Ø purification by laser ionisation: CRIS method

Laser spectroscopy in the 100 Sn region CRIS type beam line 100 Sn M. Laser spectroscopy in the 100 Sn region CRIS type beam line 100 Sn 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 DETRAP: Mass measurements with the MLL trap P. Thirolf et al. , LMU Munich Ø multi-reflection TOF spectrometer for beam purification Ø Penning trap for mass measurements − Binding energy of N~Z nuclei: 94, 95, 96 Cd, 100 Sn from S 3 − Masses of A~100 nuclei: 97 -100 Kr, 99 -102 Rb, 101, 102 Sr, 102, 103 Y − superallowed and mirror b-decay Q values: 66 As, 70 Br, 78 Nb, 82 Tc, … 21 Na, 23 Mg, 25 Al, 27 Si, 29 P, 31 S, 35 Ar, 37 K, 39 Ca, 41 Sc − Masses of r-process nuclei: 70, 81 Cu, 82 Zn, 100 Kr, 130 Ag, 130 -132 Cd, 131 -133 In − Masses of transactinide isotopes with S 3: Z~104, 106 MLL trap commissioning at Garching

Measuring the heaviest masses 257 Rf 253 No • linking the super-heavy a decay Measuring the heaviest masses 257 Rf 253 No • 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 DESIR physics cases: LOIs for DESIR Collinear laser spectroscopy b-delayed g spectroscopy of laser-polarized b-n angular correlation: LPCtrap beams Mass measurements: MLLTrap b-delayed charge part. emission N=Z line (Trap-assisted) b-decay, 112, 114 Ba TAS 257 Rf 179 -182 Au 21 LOI’s for experiments at DESIR 98, 99, 101 In, 100, 101 Sn 94, 95 Ag, 96, 97 -99 Cd 66 As, 70 Br 56, 58 Zn A<89 Zr 138, 139 Sb, 139 -142 Te 127 -133 In 129 -130 Ag, 130 -132 Cd 89 -102, 103 -106 Y 88 -101, 102 Sr 93 -97 -100 Kr 90 -92 Se 80 -85, 86 Ga, 78 -84, 86 -87 Ge, 88 As 78, 79, 80, 81 Cu, 80, 81, 82, 83 Zn 8 He, 19 Ne, 21 Na, 23 Mg, 25 Al, 27 Si, 29 P, 31 S, 35 Ar, 37 K, 39 Ca, 41 Sc RIBs from: - Fragmentation (S 1) - n-induced fission (S 2) - light particle transfer (S 2) - fusion-evaporation (S 3) 22 Al, 23 Si, 26 P, 27 S, 31 Ar, 35 Ca, 39 Ti 8 He Possible interests from VECC

Beam delivery to DESIR GANIL – SPIRAL 1 (S 1) DESIR S 3 Low-energy Beam delivery to DESIR GANIL – SPIRAL 1 (S 1) DESIR S 3 Low-energy beams from: S 1, S 2, S 3 è wide range of different isotopes è state-of-the-art equipment Production building SPIRAL 2 (S 2)

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

DESIR beam lines: BARC-TIFR collaboration SP 2 LINAC S 3 DESIR GANIL Production Transfer DESIR beam lines: BARC-TIFR collaboration SP 2 LINAC S 3 DESIR GANIL Production Transfer beam lines building Level 0: Hall (1500 m 2) beam emittance: beam energy: length of beam lines: up to 20 p. mm. mrad 10 ke. V < E < 60 ke. V ~140 m Level -1: technical rooms (550 m 2)

Collaboration BARC/TIFR – SPIRAL 2/DESIR Ø December 2009: first discussion with S. K. Gupta Collaboration BARC/TIFR – SPIRAL 2/DESIR Ø December 2009: first discussion with S. K. Gupta et al. Ø March 2010: signature LIA between France (CNRS, CEA, GANIL) and India (BARC + TIFR) Ø 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) Cost estimate: Control system programming with EPICS (? ) Total : BARC contribution : ~3822 k€ 826 k€ optical elements, beam pipes, support structures

Transfer lines optics calculations: S 2 adaptation point of SPIRAL 2 to adaptation point Transfer lines optics calculations: S 2 adaptation point of SPIRAL 2 to adaptation point DESIR RMSx, y=3 mm, ex, y RMS=20 p. mm. mrad, DE/E=0. 004 pm, E=60 k. V, M=122 (ex. : 122 Sn 1+) Production adaptation L. Perrot et al. , IPN Orsay DESIR adaptation

Collaboration BARC/TIFR – SPIRAL 2/DESIR BARC/TIFR proposal (S. K. Gupta et al. ): 1. Collaboration BARC/TIFR – SPIRAL 2/DESIR BARC/TIFR proposal (S. K. Gupta et al. ): 1. Electrostatic steerers & quadrupole triplets 2. Electrostatic benders 3. Two / three way switchyards 4. Support structure for above components & 140 m of beam lines tubes ~ 40 7 6

DESIR: • exciting physics opportunities: • Laser spectroscopy • Decay studies • Trap (assisted) 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 SPIRAL 2 (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 DESIR collaboration • ~120 scientists and engineers • ~35 different institutions • ~15 countries

SHIRa. C cooler and buncher from drawings to reality… • • Completed end of SHIRa. C cooler and buncher from drawings to reality… • • 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: Ø mecanical contraints The high-resolution separator HRS Final design of the HRS which includes: Ø mecanical contraints Ø radioprotection considerations Ø 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, Double Penning trap PIPERADE S. Grévy, M. Gerbaux, D. Lunney et al. , CENBG, CSNSM Ø not for mass measurements Ø beam purification for trap-assisted spectroscopy − high-precision measurements Si Cube − ultra-pure samples b-g spectroscopy TAS neutron arrays

Super-allowed 0+-0+ Fermi decays ft = 0+ T 1/2 QEC BR 0+ K g Super-allowed 0+-0+ Fermi decays ft = 0+ T 1/2 QEC BR 0+ K g 2 M V F 2 + g 2 M A GT 2 Ft = ft (1 + d. R’ ) (1 – dc + d. NS ) = K 2 g. V (1 + DR) M F 2 • gv = gm * Vud • verify conserved vector current (CVC) hypothesis

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

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

DESIR: a low-energy facility for GANIL http: //www. cenbg. in 2 p 3. fr/desir DESIR: a low-energy facility for GANIL http: //www. cenbg. in 2 p 3. fr/desir S 2 RFQ & HRS S 1

SPIRAL 1 beams Projectile or target fragmentation at 95 Me. V/A main interest: very SPIRAL 1 beams Projectile or target fragmentation at 95 Me. V/A main interest: very neutron- and proton-rich light nuclei 1+ n+

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

S 3 beams LISOL Fusion-evaporation reactions at Coulomb Barrier, DIC main interest: - very S 3 beams LISOL Fusion-evaporation reactions at Coulomb Barrier, DIC main interest: - very heavy nuclei - N=Z nuclei - very short-lived isotopes - refractory elements

Transfer lines optics calculations: S 1 adaptation point of LIRAT (-1. 75 m ) Transfer lines optics calculations: S 1 adaptation point of LIRAT (-1. 75 m ) to adaptation point DESIR (+1. 5 m). RMSx, y=3 mm, ex, y RMS=20 p. mm. mrad, DE/E=0. 004 pm, E=60 k. V, M=122 (ex. : 122 Sn 1+) DESIR adaptation LIRAT adaptation L. Perrot et al. , IPN Orsay

Transfer lines optics calculations: S 3 adaptation point of S 3 (-8. 5 m Transfer lines optics calculations: S 3 adaptation point of S 3 (-8. 5 m ) to adaptation point DESIR (+1. 5 m). RMSx, y=3 mm, ex, y RMS=20 p. mm. mrad, DE/E=0. 004 pm, E=60 k. V, M=122 (ex. : 122 Sn 1+) S 3 adaptation L. Perrot et al. , IPN Orsay DESIR adaptation

EQUIPEX Funding request Phase 1 (July 2012 -June 2015): investment costs Equipment cost (k€) EQUIPEX Funding request Phase 1 (July 2012 -June 2015): investment costs Equipment cost (k€) Management cost (k€) Total (k€) 0 82. 5 7415. 7 0 7415. 7 WP 2: Beam lines 5460 17. 2 5477. 2 WP 3: Identification station 203. 1 10 213. 1 390 90. 2 480. 2 353. 1 61. 8 414. 9 5 17. 1 22. 1 13826. 8 278. 8 14105. 6 Work packages WP 0: Project coordination WP 1: Buildings WP 4: General purpose Ion buncher WP 5: User facilities WP 6: Pluridisciplinary and industrial prospective Total (Phase 1)

EQUIPEX Funding request Phase 2 (July 2015 - December 2019): running costs Work packages EQUIPEX Funding request Phase 2 (July 2015 - December 2019): running costs Work packages WP 0: Project coordination WP 1: Buildings WP 2: Beam lines WP 3: Identification station WP 4: General purpose Ion buncher WP 5: User facilities WP 6: Pluridisciplinary and industrial prospective Total (Phase 2) answer in January 2012…. Operation cost (k€) Management cost (k€) Total (k€) 0 93 96. 7 542. 6 0 564. 3 225 0 234 9 0 9. 4 18 0 18. 7 162 1. 2 169. 7 5 11. 4 17. 0 961. 6 105. 6 1109. 8




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