Introduction to SPIRAL 2

1
Status of SPIRAL 2 NuPECC meetingBordeaux
October 28th 2006Marek LewitowiczGANIL

• Introduction to SPIRAL 2
• Design goals of the baseline project
• Status of the construction
• Letters of Intent for SPIRAL 2

2
The scientific case of SPIRAL 2
Heavy and Super Heavy Elements
ISOSPIN DEGREES OF FREEDOM IN NUCLEAR FORCES
Position of drip-lines
Equation of State Role of Isospin
NZ
rp-process
r-process path
r-process path
r-process path
Shell structure far from stability
SpinsShapes
Spins Shapes
Spins Shapes
Haloes Structures in the Continuum
SPIRAL 2 White Book www.ganil.fr
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Existing GANIL Accelerators
CIME Cyclotron Acceleration of RI Beams E lt 25
AMeV, 1 - 8 AMeV for FF
Direct beam line CIME-G1/G2 caves
Existing GANIL Exp. Area

• Production Caves RNB
• C converterUCx target
• 1014 fissions/s
• p- n-rich RNB (transfer, fusion-evaporation,
  DIC)

Low energy RNB DESIR
p,d source
RFQ
LINAG Exp. Hall

• Superconducting LINAC Stable-Ion beams
• E 14.5 AMeV HI A/q3, 1mA
• E 20 A MeV p,d, 4He (A/q2 ions), 5mA
• Possible extension to A/q6 ions

Heavy-Ion ECR
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SPIRAL 2 Layout
DESIR facility Low energy RIB
LINAG Exp. Area High Intensity stable beams
GANIL
LINAG Building
RIB Production Building
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Regions of the Chart of Nuclei Accessible with
SPIRAL 2 Beams
Production of radioactive beams/targets (n,?),
(p,n) etc.
SHE
NZ IsolIn-flight
Transfermiums In-flight
Fusion reaction with n-rich beams
Fission products (with converter)
Fission products (without converter)
Deep Inelastic Reactions with RIB
High Intensity Light RIB
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SPIRAL 2 yields of fission fragment after
acceleration compared to other RNB facilities
(best numbers for all)
Today
Today
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SPIRAL 2 Budget in Mas stated in the financial
agreement signed on Sept. 4th 2006
(additional cost)
(manpower)
(Total cost)
Detectors are not included in the investment
budget of SPIRAL 2 but France (CEA,CNRS, Region
BN) contributes to all equipments constructed at
GANIL typically at the level of 30 to 50.
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SPIRAL 2 Schedule
2006 2007 2008 2009 2010 2011
2012 2013 2014 2015 2016
Reference Project Def.
Safety authorizations
Building construction
Under discussion
Construction of LINAG
Stable ion beams from LINAG
RIB
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Project Organisation
Sections Labs
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International Agreements Physics technique

• ISOLDE - Letter of agreement signed in 2005
• Romania - MoU signed on 28/02/06
• Dubna - MoU signed 14/03/06
• SARAF (Israël) MoU signed in May 2006
• Grant request from the UK community
• Direct beam line CIME-G1/G2
• BARC TIFR (Bombay) MoU in preparation (draft)
• RF system, software
• LEA with LNL Legnaro (Italy) in preparation
  (second draft)
• MoU (mainly on d-gtn converter) to be signed in
  the coming months
• LIA with RIKEN in preparation (draft)
• Poland - LEA in preparation
• Triumf - MoU in preparation (first draft)
• Argonne MoU in preparation (first draft)
• Oak Ridge MoU under discussion
• Technical meetings SPIRAL 2 - FAIR
• LEA Lab. Europ. Associé SPIRAL 2 on the
  ESFRI list
• LIA Lab. Int. Associé

11
Status of SPIRAL 2 NuPECC meetingBordeaux
October 28th 2006Marek LewitowiczGANIL

• Introduction to SPIRAL 2
• Design goals of the baseline project
• Status of the construction
• Letters of Intent for SPIRAL 2

12
Choice of the baseline project
LINAG Exp. Area
DESIR
Choice of the HI source and injector
GANIL
Road

• Number of fissions/s
• Number and type of
• production caves
• 1 Ion Sources
• Parallel-beams operation

CIME-G1/G2 direct beam line
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LINAG Accelerator Exp. Area

• Priorities
• Construction of the injector A/q3
• Second injector A/q6 (extension) should be
  designed as soon as possible

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LINAGExperimental Area
n-tof

• Priority
• Construction of 3 halls
• and at least S3 hall fully
• equipped

S3
Interdisciplinary Research
LINAG beam
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RIB productionBuilding
Two RIB production caves 1 red zone 1
yellow zone Preserve the possibility to
deliver in the future two simultaneous RIB for
(DESIR CIME) Reserve space for an RFQ cooler
and HRS (High Resolution Mass Separator)

• 1 Ion Sources
• Priorities
• Selective ion sources
• Surface ionisation
• Laser (collaborations!)
• ECR

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Base-line projectSummary of priorities

• Choice of the HI source and injector for LINAG
• Phoenix V2 source - for the beginning of
  operation development of metallic beams
• Second injector q/A1/6 should be designed as
  soon as possible
• LINAG Experimental Area
• Construction of 3 experimental halls. S3 hall
  fully equipped
• Design goal for number of fiss./second
• As close as possible to 1014 fiss./s (safety and
  building cost limitations)
• RIB Production Building
• Priority for Selective 1 Ion Sources (IS, laser,
  ECR)
• RIB production caves 1 red zone 1 yellow
  zone
• Preserve a possibility to deliver in the future
  two simultaneous RIB for (DESIR CIME)
• Reserve space for the RFQ cooler and HRS (High
  Resolution Mass Separator)
• DESIR
• DESIR building included in the SPIRAL 2 buildings
  construction phase
• CIME-GI/G2 Direct beam line
• To be constructed before the SPIRAL 2 buildings

Discussed by SC, SAC TAC
17
Status of SPIRAL 2 NuPECC meetingBordeaux
October 28th 2006Marek LewitowiczGANIL

• Introduction to SPIRAL 2
• Design goals of the baseline project
• Status of the construction
• Letters of Intent for SPIRAL 2

18
CEA / DAPNIA Saclay
RFQ prototype
Vane tip displacements at 20 and 38 kW
displacements are lt 60µm, (max. allowed
100µm)
20 kW
38 kW
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SC Cavities
CEA/DSM/DAPNIA Prototype cavity (beta 0.07)
CNRS - IPN Orsay Prototype cavity (beta 0.12)
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The Driver Accelerator construction has started
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Production Modules (d-gtn converter UCx target
ion source systems)
Recent solution proposed by Thales
Ganil design
Recent design (under study)
Ganil design
22
Status of SPIRAL 2 NuPECC meetingBordeaux
October 28th 2006Marek LewitowiczGANIL

• Introduction to SPIRAL 2
• Design goals of the baseline project
• Status of the construction
• Letters of Intent for SPIRAL 2

23
SPIRAL 2 - Letters of intent (LoI)Towards new
detectors for SPIRAL 2

• Procedure and schedule
• Call for LoI - May 26th 2006 (just after the SP2
  SAC meeting on May 17, 2006)
• Dead-line for LoI October 2nd, 2006
• Evaluation of LoI by SAC - October 1920th 2006
• Results of the evaluation will be communicated to
  the proponents by the beginning of November 2006.
• Call for proposals launched in 2007
• Signature of MoU by collaborations proposing the
  construction of new equipment in 2007-2008

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SPIRAL 2 - Letters of intent (LoI)Resume

• SPIRAL 2 Letters of Intent in numbers
• 19 LoIs submitted
• 25 oral presentations of the LoIs at the Open
  session of SAC on October 19th 2006
• LoIs signed by 595 physicists (without double
  counting) (190 from France, 492 from NuPECC
  member countries) from 34 countries
• Spokespersons 50 France, 50 foreigners
• Written documents of in total 341 pages

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List of LoI for SPIRAL 2

• 1. The DESIR facility (Decay, Excitation and
  Storage of Radioactive Ions) (B. Blank)
• 2. Decay properties of neutron-rich nuclei (Yu.
  Penionzhkevich, F. Ibrahim)
• 3. S3 The Super Separator Spectrometer for LINAG
  Beams (A. Villari, A. Drouart, J. Nolen)
• 4. From actinides to super-heavy elements with
  SPIRAL 2 reaction dynamics and structure (Paul
  Greenlees)
• 5. Fusion reactions A probe of multidimensional
  tunnelling (A. Navin, R. Raabe, A. Shrivastava)
• 6. Nucleon correlations probed via multiple
  particle transfer and their influence on
  sub-barrier fusion (L. Corradi)
• 7. High-resolution Gamma-ray Spectroscopy at
  SPIRAL2 (AGATA-EXOGAM II) (W.Korten, B.
  Wadsworth)
• ? Proton drip-line studies and NZ nuclei (D.
  Rudolph)
• ? Neutron-rich nuclei (A. Gadea)
• ? Nuclear shapes and high-spin spectroscopy (A.
  Görgen)
• ? Collective modes in the continuum (S. Leoni)
• ? Nuclear electromagnetic moments (G. Georgiev)
• ? Spectroscopy of the heaviest elements (P.
  Greenlees)
• 8. High-energy ?-rays as a probe of hot nuclei
  and reaction mechanisms (J.A. Scarpaci, A. Maj,
  D. Jenkins)
• 9. Studying the r process nucleosynthesis with
  direct reactions (O. Sorlin, K. L. Kratz)
• 10. a-capture reactions in inverse kinematics
  relevant to stellar nucleosynthesis (S.
  Harissopulos F. De Oliveira)
• 11. Production of radioactive samples for
  astrophysical interest by (n,p), (n,3He), (n, a)
  reactions (F. Hammache, M. Heil)
• 12. Production targets of light radioisotopes for
  nuclear astrophysics and basic nuclear science
  studies (M. Hass, D. Berkovits, T.Y. Hirsh)
• 13. Improving effective forces, mean field based
  methods, and predictions dedicated measurements
  (M. Bender, K. Bennaceur, S. Péru)

Main Collaborations DESIR S3 AGATA EXOGAM
2 ?-ray Calorimeter GASPARD n-tof FAZIA
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SPIRAL 2 Scientific CommunityOrganisation
SPIRAL 2 Scientific Advisory Committee
Steering Committee
Project management - Project Leader - Scientific
Coordinator ..

• Int. Collaborations SP2
• DESIR
• S3
• -GASPARD
• -

Coordination Committee
SPIRAL 2 France Phys. SPIRAL 2 Scientific
Coordinators in the IN2P3 CEA Labs

• Existing International
• Collaborations
• NUSTAR
• AGATA
• - EXOGAM
• - EURONS
• - EURISOL
• FAZIA

• SP2-NUSTAR WG
• Electr. DAQ
• Calorimeter
• Tracking detectors
• Neutron detectors ?

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SPIRAL 2 on the ESFRI list

• Brussels, 19 October 2006
• European Research Infrastructures 35 projects
  identified
• The ESFRI roadmap (see IP/06/1431) identifies 35
  large-scale infrastructure projects at various
  stages of development. This Memo gives brief
  details of the projects concerned. The full text
  of the roadmap, which contains longer
  descriptions of the projects can be found at
  http//cordis.europa.eu/esfri/home.html
• Isotope beams with SPIRAL 2
• The project aims at delivering rare (radioactive)
  isotope beams with intensities not yet available
  with present machines. SPIRAL 2 will reinforce
  European leadership in the field of nuclear
  physics based on exotic nuclei.

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Status of SPIRAL 2 NuPECC meetingBordeaux
October 28th 2006Marek LewitowiczGANIL

• Introduction to SPIRAL 2
• Design goals of the baseline project
• Status of the construction
• Letters of Intent for SPIRAL 2

29
LoI SPIRAL 2 - Participants
30
Choice of the HI source and injector

• Priorities
• Phoenix V2 source - for the beginning of
  operation development of metallic beams
• In 2-3 years a choice of the best next-generation
  HI source (extension)

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DESIR, RFQ Cooler HRS
DESIR Facility for experiments with low energy
RIBs
Priorities DESIR building included in the SPIRAL
2 building design phase DESIR building and
equipment as well as RFQ et HRS to be financed by
international collaborations (not included in the
current construction budget)
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Production Modules
d-gtn Converter -gt vertical wheel
Bearings under study, to reduce friction Several
solutions to be tested
Oven -gt measurements with a Tantalum oven and a
Carbon target at 1500C Next measurements at
2000C before the end of this year
UCx target calculation to reduce the size and
weight of UCx Solutions for the waste management
under study
IPNOrsay-Ganil