DESIR at SPIRAL2 D

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DESIR at SPIRAL2Désintégration, Excitation et
Stockage des Ions RadioactifsDecay, 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
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DESIR in three parts
BESTIOL BEta decay STudies at the SPIRAL2 IsOL
facility LUMIERE Laser Utilization for
Measurement and Ionization of Exotic Radioactive
Elements DETRAP DESIR Trapping facilites
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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
• -gt lifetime and decay spectroscopy magic
  numbers and astrophysics
• 81Cu, 103-106Y, 81Cu, 83Zn, 86Ga, 87Ge,
  88As, 92Se,100Kr,130Ag,139Sb,142Te
• -gt delayed charged-particle correlations (b2p
  emission) pairing in nuclei
• 22Al, 23Si, 26P, 27S, 31Ar, 35Ca,
  39Ti
• -gt 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

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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

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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

• Collinear Laser spectroscopy
• - spins
• - magnetic quadrupole moments
• - change of charge radii
• NZ 28 (48-55Mn, 52-58Fe), 40 (Alt89Zr,
  88-101Sr, 89-103Y ), 50 (95-102Ag, 100-110Sn),
• N82 (78-84Ge, 80-85Ga), N104 (179-182Au)
• b-NMR spectroscopy and b-delayed spectroscopy of
  polarized beams
• - spins
• - magnetic quadrupole moments
• Z50, N82 132Sn region 127-133In
• purification by laser ionisation CRIS method

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Laser spectroscopy in the 100Sn region
CRIS type beam line
100Sn
M. Bissel et al.

• charge radii and moments for the most exotic
  isotopes

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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 NZ nuclei
• 94,95,96Cd, 100Sn from S3
• Masses of A100 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,131-133
  In
• Masses of transactinide isotopes with S3

MLL trap commissioning at Garching
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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.
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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 LOIs for experiments at DESIR
NZ line
(Trap-assisted) b-decay, TAS
112,114Ba
98,99,101In,100,101Sn
138,139Sb,139-142Te
94,95Ag, 96,97-99Cd

• RIBs from
• Fragmentation (S1)
• n-induced fission (S2)
• light particle transfer (S2)
• fusion-evaporation (S3)

89-102,103-106Y
Alt89Zr
88-101,102Sr
93-97-100Kr
56,58Zn
90-92Se
80-85,86Ga, 78-84,86-87Ge, 88As
8He, 19Ne, 21Na, 23Mg, 25Al,27Si, 29P, 31S, 35Ar,
37K, 39Ca, 41Sc
22Al, 23Si, 26P, 27S, 31Ar, 35Ca, 39Ti
8He
??Possible interests from VECC
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Beam delivery to DESIR
GANIL SPIRAL1 (S1)
DESIR
Production building SPIRAL2 (S2)
S3

• Low-energy beams from
• S1, S2, S3
• wide range of different isotopes
• state-of-the-art equipment

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Possible DESIR hall layout
N -TOF detector
PIPERADE TAGS
LPCTrap
MLLTrap
TETRA
Silicon Cube
BEDO
LUMIERE
TONNERRE
BELEN
Identification station
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DESIR beam lines BARC-TIFR collaboration
S3
SP2 LINAC
DESIR
GANIL
Production building
Transfer beam lines
beam emittance up to 20 p.mm.mrad beam energy
10 keV lt E lt 60keV length of beam lines 140 m
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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
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Transfer lines optics calculations S2
adaptation point of SPIRAL2 to adaptation point
DESIR RMSx,y3mm, ex,y RMS20p.mm.mrad,
DE/E0.004pm, E60kV, M122 (ex. 122Sn1)
L. Perrot et al., IPN Orsay
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Collaboration BARC/TIFR SPIRAL2/DESIR

• BARC/TIFR proposal (S.K. Gupta et al.)
• Electrostatic steerers  quadrupole triplets 
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• Electrostatic benders         7
• Two / three way switchyards              
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• Support structure for above components  
• 140 m of beam lines tubes

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• 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

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DESIR collaboration

• 120 scientists and engineers
• 35 different institutions
• 15 countries

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SHIRaC 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
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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
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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
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Super-allowed 0-0 Fermi decays

• gv gm Vud
• verify conserved vector current (CVC) hypothesis

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DETRAP Fundamental interactions at the LPCTrap

• b-n angular correlation measurement in a Paul
  trap
• -gt exotic currents in the weak interaction 6He,
  8He , 19Ne , 35Ar
• -gt mirror b decay studies 21Na,23Mg,25Al,27Si,29
  P,31S,35Ar,37K,39Ca,41Sc

LPCTrap setup at GANIL/SPIRAL
trapping decay measurement
Pl. Sc.
DSSSD
Beam
µCP
µCP
cooling bunching in a RFQ
E. Liénard et al., LPC Caen
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Precise measurements of b-n angle

• b-n angular correlation

• within the SM

x Fermi fraction r GT/F mixing ratio
6He
Future measurements 8He , 19Ne , 35Ar
X. Fléchard et al., LPC Caen
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DESIR a low-energy facility for GANIL
S1
S2
RFQ HRS
http//www.cenbg.in2p3.fr/desir
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SPIRAL1 beams
Projectile or target fragmentation at 95
MeV/A main interest very neutron- and
proton-rich light nuclei 1 ? n
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SPIRAL2 beams

• Fission, fusion
• evaporation, DIC
• main interest
• fission products
• medium-mass
• proton-rich nuclei

e.g. 36Ar _at_ 20 MeV/A
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S3 beams

• Fusion-evaporation
• reactions at Coulomb
• Barrier, DIC
• main interest
• very heavy nuclei
• NZ nuclei
• very short-lived
• isotopes
• refractory elements

LISOL
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Transfer lines optics calculations S1
adaptation point of LIRAT (-1.75m ) to adaptation
point DESIR (1.5m). RMSx,y3mm, ex,y
RMS20p.mm.mrad, DE/E0.004pm, E60kV, M122
(ex. 122Sn1)
L. Perrot et al., IPN Orsay
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Transfer lines optics calculations S3
adaptation point of S3 (-8.5m ) to adaptation
point DESIR (1.5m). RMSx,y3mm, ex,y
RMS20p.mm.mrad, DE/E0.004pm, E60kV, M122
(ex. 122Sn1)
L. Perrot et al., IPN Orsay
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EQUIPEX Funding request
Phase 1 (July 2012-June 2015) investment costs
Work packages Equipment cost (k) Management cost (k) Total (k)
WP0 Project coordination 0 82.5 82.5
WP1 Buildings 7415.7 0 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
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EQUIPEX Funding request
Phase 2 (July 2015 - December 2019) running costs
Work packages Operation cost (k) Management cost (k) Total (k)
WP0 Project coordination 0 93 96.7
WP1 Buildings 542.6 0 564.3
WP2 Beam lines 225 0 234
WP3 Identification station 9 0 9.4
WP4 General purpose Ion buncher 18 0 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.