The low-energy facility at SPIRAL2 transport-energy (50 keV) exotic-nuclide beams for: For the DESIR Collaboration: D. Lunney, SPIRAL2 SAC, 29 January.

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Presentation transcript:

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

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 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

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

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

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

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

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

High-intensity cooler (LPC Caen) High-resolution separator (CENBG Bordeaux) Fast tape-station (IPHC Strasbourg) Stable sources & general-purpose ion buncher (CSNSM/GANIL) * Collinear laser set-up (Manchester, Leuven, Birmingham, Orsay) including a  -NMR set-up *  -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) * MLL Penning-trap system (LMU Munich) * Magneto-optical trap (KVI Groningen) * Decay kinematics Paul-trap (LPC Caen) DESIR experimental equipment

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)

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

Reiner Krueken

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

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

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

Laser mezzanine Meeting room (on top of DAQ) Kitchen + WC (on top of CR) MLL trap Collinear Laser spectroscopy  -NMR RFQ buncher 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

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

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

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

DESIR time line

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 : k€ lignes de faisceau (optique, pompage) : vers DESIR : 2700 k€ dans DESIR (seulement l’arête) : 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 ?

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€( k€ CPER) Contribution HRS ? eventuellement: lignes de faisceau :vers DESIR : 2700 k€ dans DESIR (seulement l’arête) : k€ contrôle/commande, diagnostiques: 400 k€

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

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