Peter Butler (CERN

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Research at ISOLDE and the path to EURISOL
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Physics snapshot
12C triple ? state
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The N 20 story
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The N 20 story 31Mg
G Neyens, M. Kowalska, et al.
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The N 20 story 31Mg
G Neyens, M. Kowalska, et al.
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REX-ISOLDE
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Rex photo
REX-ISOLDE CERN
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The N 20 story
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The N 20 story 30Mg
O. Niedermaier, H. Scheit et al.
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The N 20 story 32Mg
O. Niedermaier, H. Scheit et al.
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Beam purity
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The N 20 story B(E2)s
MINIBALL Coulex
Direct lifetime (Mach 04)
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HIE-ISOLDE
Increase proton beam intensity 2 ? 6 ?A (LINAC 4)
Isobaric mass separation RFQ cooler new HRS
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Eurisol

• 100kW direct production
• 5 MW spallation n target
• ? 100 MeV/u RIB
• For 90Kr
• x 105 increase in yield for ISOL products from
  existing RIB (e.g. REX-ISOLDE)
• X 100 increase from 2nd generation ISOL
•  
•  
•    

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Kr yields
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High spin states in SHE
92Kr 164Dy ? 256No Ex 24 MeV
now measured
Egido Robledo PRL 85 1198
Bender et al. Nucl Phys A723 354
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Eurisol layout
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Approved Design StudyFeb 2005 - Feb 2009

• Detailed engineering oriented studies and
  technical prototyping work
• 20 participants from 14 countries
• 21 contributors from Europe, Asia and North
  America
• Total Cost 33 M
• Contribution from EU 9 M
• RD will benefit 2nd generation ISOL projects

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Eurisol schematic
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EURISOL possible sites

• European Joint Laboratory -
• INFN-Legnaro and GANIL,
• funded mostly by host state(s)
• CERN, funded by subscription
• Green-field site in less-favoured region near
  nuclear physics institute,
• funded by European Structured Funds
• Review of funding mechanism during DS

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CERN option for driver Superconducting Proton
Linac
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European NP Roadmap
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FINE
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World machines
Location Driver Post-accelerator Fragment separator Type of facility
GSI FAIR synchrotron, heavy ions 1.5 A GeV - Super-FRS In-Flight
EURISOL protons, 1 GeV, 1-5 MW CW Linac, up to 100 A MeV - ISOL
USA RIA Rare Isotope Accelerator 900 MeV protons heavy ions 400 A MeV, 100 kW Linac up to 815 A MeV 4-dipole Separator ISOL, In-Flight
JAPAN RIKEN RIB Factory Ring-cyclotrons up to 400 A MeV (light ions) up to 150 A MeV (heavy ions) - 3 fragment Separators storage cooler rings In-Flight
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Possible sites for EURISOL
Liverpool
GANIL
CERN
Legnaro
Less-favoured regions
Valencia
Catania
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RIA Layout
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IF versus ISOL
In Flight
ISOL
driver accelerator or reactor
light ions, neutrons
heavy ions
thin target
high-temperature thick target
ion source
fragment separator
gas cell (ms)
mass separator
stochastic/electron cooling to MeV/u (s)
GeV/u (?s)
experiment
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Energetic Radioactive Beam Facilities in Europe
CRC, Louvain-la-Neuve, Belgium delivering ISOL
beams since 1989
FAIR IF beams
GSI, Darmstadt, Germany delivering IF beams since
1990
GANIL, Caen, France delivering IF beams since
1984 (SPIRAL) ISOL beams since 2001
Dubna ISOL beams
SPIRAL II ISOL beams
MAFF, Munich, Germany ISOL beams
SPES, Legnaro, Italy ISOL beams
REX-ISOLDE, CERN delivering ISOL beams since 2001
EXCYT, Catania, Italy ISOL beams
HIE-ISOLDE ISOL beams