The low-energy facility at SPIRAL2The low-energy facility at SPIRAL2

transport-energy (50 keV) exotic-nuclide beams for:

For the DESIR Collaboration: D. Lunney, SPIRAL2 SAC, 29 January 2009

Désintégration, Excitation et Stockage d’ Ions Radioactifs

decay spectroscopy -laser spectroscopy -ion / atom trapping -

nuclear fine structurecharge radii & momentsmasses, ion-purification weak interaction studies

The low-energy facility at SPIRAL2The low-energy facility at SPIRAL2

Spokesperson: B. BlankGANIL 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)

Désintégration, Excitation et Stockage d’ Ions Radioactifs

The DESIR Collaboration

France51,4%

Serbia3,6%

Belgium2,7%

Bulgaria0,9%

Russia0,9%

Italy0,9%

India1,8% Hungary

2,7%

Finland3,6%

Germany5,4%

Switzerland1,8%

U.K.8,1%

Netherlands2,7%

Romania4,5%

Spain9,0%

low (no) energy & precision measurementslow (no) energy & precision measurements

four-year observation considerably 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 ofglobal observables anddetailed spectroscopy

GANIL/SPIRAL 1GANIL/SPIRAL 1

DESIRDESIRproduction

buildingproduction

building

LINACLINAC

S3S3

NFSNFS

RFQHRSRFQHRS

SPIRAL 2 facilitySPIRAL 2 facility

productionvault (red)

target

high-intensitycooler (SHIRAC)

andhigh-resolution

separator

to post-accelerator (CIME)

yieldstation

toDESIR

SPIRAL 2 front endSPIRAL 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 separatorHigh-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)High-intensity ion cooler (SHIRAC)

gaz

faisceau

Cooler for Accumulation & Radioactive on Line Analysis

High dispersionHigh angular acceptanceLow emittance cooling confinement

• 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 equipmentDESIR experimental equipment

B

P. Campbell, U. Manchester; G. Neyens, K.U. Leuven; F. Le Blanc, IPN-Orsay

LUMIERE for radii & momentsLUMIERE for radii & momentsLaser Utilisation for Measurement and Ionization of Exotic Laser Utilisation for Measurement and Ionization of Exotic

Radioactive ElementsRadioactive Elements

laser beam magnets

Recent examples:ISOLDE: D. Yordanov et al., PRL (2008)JYFL: B. Cheal et al., PLB (2007)

BESTIOL experimentBESTIOL experiment(BEta-decay studies at Spiral Two IsOL)(BEta-decay studies at Spiral Two IsOL)

M.-J. Ga 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)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 -recoilX. Flechard et al., PRL (2008)

LPC trap for decay-correlation studiesLPC 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 DESIRVarious beams to DESIR

Lasermezzanine

Meetingroom

(on top of DAQ)

Kitchen

+ WC(on top of CR)

MLL trap

Collinea

r Las

er

spec

trosc

opy

-NM

R

RFQbun-cher

+

Decay

set

up

Paultrap

General

purpose

SAS

ElectronicsDeskAccess5 m

Beam fromLevel -1

TAS

Neutronditch

Crane access to basement

Double M

OT

Gener

al

purpose

IS

Identification station with

tape

LN2

Gas &

w

aste sto

rage

LUMIERE BESTIOL

DA

Qro

om

Co

ntro

lro

om

off-linesource2

off-linesource1

DESIR beam hallDESIR beam hall

Supply

Electri-city

Gray Room 2

Gray Room 1

AssemblyRoom 3

ControlRacks

Interfaces

HV

supplies

Crane access to basement

Stor- age 1

Assembly Room 2

Assembly Room 1

Stor- age 2

Radiolab

5 m

storage

Limits of DESIR hall

free

Workshop

X

Neutronditch

DESIR DESIR cavecave

MLL Penning

trap

neutronsgeneralpurpose

spectroscopy

buncherion sources

LUMIERE

Paultrap

MOT

BESTIOL

TAS

controlroom

S1S2S3

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 packagesDESIR facility work packages

…from the desire for fine physics

DDEE

IIRR

Thanks to the collaboration & spokesman

DESIR time lineDESIR 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 : 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 ?

• 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€

• 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?

année 2009 2010 2011 2012 2013

SHIRAC (LPC Caen) 40 15 15 15

hall de montage CENBG (HRS) 50

Mission DESIR + HRS (CENBG)

15 15 15 15 15

Double Penning (CENBG) 60 60 70

Station d’identification

(IPHC)

1 1 76 62

GPIB + 2 ion sources

(CSNSM + GANIL)

46 120 91 50

LPCTRAP (LPC Caen) 50 55

Neutron array (LPC Caen) 50 50 50 ? ?

Fast timing (LPSC Grenoble) 34

total 140 251 341 250

+ main d’œuvre du GANIL, du CENBG, de l’IPNO, du LPC Caen, de l’IPHC, du LPSC…