1. The low-energy facility at SPIRAL2 transport-energy (50 keV) exotic-nuclide beams for: For the DESIR Collaboration: D. Lunney, SPIRAL2 SAC, 29 January 2009 D ésintégration, E xcitation et S tockage d’ I ons R adioactifs decay spectroscopy - laser spectroscopy - ion / atom trapping - nuclear fine structure charge radii & moments masses, ion-purification weak interaction studies

2. The low-energy facility at SPIRAL2 Spokesperson: B. Blank GANIL liaison: J.-C. Thomas collaboration initiated during the first SPIRAL2 workshop, July 2005 series of meetings through 2006-2008 to define DESIR: B. Blank, P. Campbell, F. Le Blanc, M.- J. Garcia-Borge, M. Lewitowicz, D. Lunney, O. Naviliat-Cuncic, G. Neyens, J.-L. Tain, P. Thirolf, J.-C. Thomas  over 110 scientists (lol & tp) D ésintégration, E xcitation et S tockage d’ I ons R adioactifs

3. low (no) energy & precision measurements four-year observationconsiderably less… Increased production for two nuclear structure paradigms:  intensity for specific reactions  chart the terra incognita ISOL:good beam quality TRAP:long observation time decay kinematics beam preparation NIST Jackson Pollock beam preparation DESIR:(precise) knowledge of global observables and detailed spectroscopy

4. GANIL/SPIRAL 1 DESIR production building production building LINAC S3 NFS RFQ HRS RFQ HRS SPIRAL 2 facility

5. production vault (red) target high-intensity cooler (SHIRAC) and high-resolution separator to post-accelerator (CIME) yield station to DESIR SPIRAL 2 front end F. Varenne, GANIL

6. symmetric design - inspired by the CARIBU HRS at Argonne National Laboratory: C.N. Davids and D. Peterson, NIMB (2008) Beam profile in x-direction Suggested layout T.Kurtukian-Nieto, CENBG High-resolution mass separator

7. Goal: * high-voltage (20 kV), high frequency (20 MHz) linear RFQ trap for strong confinement: uA beams 100  confinement of present devices: prototype Results:* uA beam trapped at Orsay: O. Gianfrancesco et al., NIMB (2008) * Emittance measurements underway at LPC: F. Duval, Ph.D, U. Caen (2009) G. Ban, LPC-Caen High-intensity ion cooler (SHIRAC)    gaz faisceau C ooler for A ccumulation & R adioactive on L ine A nalysis High dispersion High angular acceptance Low emittance  cooling  confinement

8. 2.2.1. High-intensity cooler (LPC Caen) 2.2.2. High-resolution separator (CENBG Bordeaux) 2.2.3. Fast tape-station (IPHC Strasbourg) 2.2.4. Stable sources & general-purpose ion buncher (CSNSM/GANIL) * 2.2.5. Collinear laser set-up (Manchester, Leuven, Birmingham, Orsay) including a  -NMR set-up * 2.2.6.  -decay set-up (Bordeaux, GANIL, Strasbourg, Orsay, Madrid) total-absorption spectrometer (Valencia/Surrey) Penning-trap-assisted spectroscopy (Bordeaux) neutron set-ups TETRA (Dubna) and CIEMAT (Madrid, Caen) fast-timing spectroscopy (Uppsala/Grenoble) general-purpose spectroscopy (Madrid) * 2.2.7 MLL Penning-trap system (LMU Munich) * 2.2.8. Magneto-optical trap (KVI Groningen) * 2.2.9. Decay kinematics Paul-trap (LPC Caen) DESIR experimental equipment

9. B P. Campbell, U. Manchester; G. Neyens, K.U. Leuven; F. Le Blanc, IPN-Orsay LUMIERE for radii & moments Laser Utilisation for Measurement and Ionization of Exotic Radioactive Elements laser beam magnets Recent examples: ISOLDE: D. Yordanov et al., PRL (2008) JYFL: B. Cheal et al., PLB (2007)

10. BESTIOL experiment (BEta-decay studies at Spiral Two IsOL) M.-J. G a Borge, J.-L. Tain, Y. Penionchevich, D. Cano, H. Mach, G. Simpson, B. Blank, N. Orr TETRA CIEMAT TONNERRE fast timing TAS T-AS

11. Reiner Krueken

12. P. Thirolf, LMU-Munich DESIRTRAP (formerly MAFFTRAP) masses: nucleosynthesis, magic-number migration, weak-interaction studies D. Neidherr et al., ISOLTRAP (2008)

13. candidate:(pure GT transition) deduce  angular correlation from measurement of  -recoil X. Flechard et al., PRL (2008) LPC trap for decay-correlation studies E. Liénard & O. Naviliat-Cuncic, LPC-Caen "Ring" trap SPIRAL1 low-energy beam line cooling & bunching trapping & measuring H. Wilschut, KVI-Groningen Also: atom traps

14. DESIR GANIL - SPIRAL1 (S1) SPIRAL2 (S2) S3 Various beams to DESIR

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

16. Supply Electri- city Gray Room 2 Gray Room 1 Assembly Room 3 Control Racks Interfaces HV supplies Crane access to basement Stor- age 1 Assembly Room 2 Assembly Room 1 Stor- age 2 Radio lab 5 m storage Limits of DESIR hall free Work shop X Neutron ditch DESIR cave

17. MLL Penning trap neutrons general purpose spectroscopy buncher ion sources LUMIERE Paul trap MOT BESTIOL TAS control room S1 S2 S3 automated beam tuning system

20. General-purpose ion buncher and stable-ion sources: Pierre Delahaye RFQ SHIRAC:Gilles Ban High-resolution separator:Bertram Blank Identification station:Philippe Dessagne Beam transport lines: Francois Le Blanc Safety and security:Jean-Charles Thomas Command/Control, diagnostics:Stéphane Grévy Building:Franck Delalee DESIR facility work packages …from the desire for fine physics DEIR Thanks to the collaboration & spokesman

22. DESIR time line

23. DESIR hall + bâtiment d’interface :6000 k€ Cooler SHIRAC non-nucléarisé (LPC Caen) : 450 k€ HRS (CENBG – contribution pour hall de montage) : 50 k€ mission DESIR – HRS (CENBG) : 4 * 15 k€/an HRS : 1500 - 3000 k€ lignes de faisceau (optique, pompage) : vers DESIR : 2700 k€ dans DESIR (seulement l’arête) : 870 - 1400 k€ contrôle/commande, diagnostiques: 400 k€ station d’identification (Strasbourg) : 140 k€ General purpose ion buncher GPIB (GANIL) + 2 stable IS: 290 k€ fast timing setup (Grenoble) : 34 k€ Beam-preparation double Penning trap (CENBG) : 945 k€ LPCTRAP facility (LPC) : 105 k€ Neutron detection array(LPC) : 150 k€ Mode de financement: SPIRAL2, Espagne, ANR, Région Aquitaine, IN2P3, CPER, GANIL, laboratoire, Europe ?

24. Cooler SHIRAC (LPC Caen) : 450 k€ + nucléarisation (dont 320 k€ CPER) HRS (CENBG – contribution pour hall de montage) : 50 k€ mission DESIR – HRS (CENBG) : 4 * 15 k€/an station d’identification (Strasbourg) : 140 k€ General purpose ion buncher GPIB + 2 stable IS (GANIL/CSNSM) : 290 k€ Double Penning trap (mission + fonctionnement) (CENBG) : 190 k€ LPCTRAP (LPC) : 105 k€ Neutron detection array (LPC) : 150 k€ fast timing setup (Grenoble) : 34 k€ DESIR hall + bâtiment d’interface :4000 k€(+ 2000 k€ CPER) Contribution HRS ? eventuellement: lignes de faisceau :vers DESIR : 2700 k€ dans DESIR (seulement l’arête) : 870 - 1400 k€ contrôle/commande, diagnostiques: 400 k€

25. Beam-preparation double Penning trap, investissement (CENBG) : 755k€ Espagne: HRS : 1500 - 3000 k€ lignes de faisceau :to DESIR : 2700 k€ central DESIR beamlines: 870 - 1400 k€ contrôle/commande, diagnostiques: 400 k€ What about the S3-DESIR line?

26. année20092010201120122013 SHIRAC (LPC Caen)4015 hall de montage CENBG (HRS)50 Mission DESIR + HRS (CENBG) 15 Double Penning (CENBG)60 70 Station d’identification (IPHC) 117662 GPIB + 2 ion sources (CSNSM + GANIL) 461209150 LPCTRAP (LPC Caen)5055 Neutron array (LPC Caen)50 ?? Fast timing (LPSC Grenoble)34 total140251341250 + main d’œuvre du GANIL, du CENBG, de l’IPNO, du LPC Caen, de l’IPHC, du LPSC…