M. Benedikt 1

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Beta Beam Design Study as part of EURISOL

• Michael Benedikt,
• AB Division, CERN

Outline

• EURISOL Design Study
• Beta Beam Conceptual Design
• Synergies with EURISOL
• Beta Beam Work Units
• Preliminary Planning
• Conclusions

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The Beta Beam in EURISOL

• EURISOL design study writing committee
• Graziano Fortuna (INFN-LNL, study coordinator),
  Peter Butler (CERN) and Yorick Blumenfeld
  (Orsay).
• Mats Lindroos, special consultant for the
  beta-beam.
• EURISOL study
• Organised in 12 Tasks of which one is the
  beta-beam aspects.
• Beta Beam task coordinator Michael Benedikt
  (CERN)
• Key-dates
• 2nd week of January 2004, second draft from task
  coordinators.
• 26 January 2004 final meeting EURISOL steering
  committee and design study writing committee.
• Beginning of February 2004 final version
  proposed by the writing committee.
• 16th February 2004 final meeting with task
  coordinators.
• 4 March 2004 design study proposal submitted to
  EU.

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Eurisol Design Study Tasks

• Preparatory meeting for EURISOL design study
  proposal14. Nov in Orsay.
• First drafts presented by task coordinators.

1. Proton Accelerator (Alberto Facco, INFN-LNL) 
2. Heavy-Ion Accelerator (MH. Moscatello, GANIL)
3. Cryomodule Development (S. Bousson, IPNO)
4. Direct Target/Ion Source (J. Lettry, CERN)
5. Solid Converter-Target/Ion Source (L. Tecchio,
   INFN-LNL)
6. Liquid-Metal Target/Ion Source (F. Groeschel,
   PSI)
7. Safety and Radioprotection (D. Ridikas,
   CEA-Saclay)
8. Beam Preparation (A. Jokinen, JYFL)
9. Physics and Instrumentation (R. Page, U.
   Liverpool)
10. Beam Intensity Calculations (K.H. Schmidt, GSI)
11. Beta-Beam Aspects (M. Benedikt, CERN)
12. Co-ordination and Layout (Not yet allocated)

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Beta Beam Concept Design
AIM provide beams of electron (anti) neutrinos
by decay of beta active ions.
Experiment
Proton Driver SPL
Acceleration to final energy PS SPS
Ion production ISOL target Ion source
SPS
Beam preparation ECR pulsed
Neutrino Source Decay Ring
Decay ring Br 1500 Tm B 5 T C 7000
m Lss 2500 m 6He g 150 18Ne g 60
Ion acceleration Linac
PS
Acceleration to medium energy Bunching ring
and RCS
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Task Beta Beam Aspects
Starts at exit of heavy ion LINAC (100 MeV/u) to
Decay Ring (100 GeV/u).
Experiment
Proton Driver SPL
Acceleration to final energy PS SPS
Ion production ISOL target Ion source
SPS
Beam preparation ECR pulsed
Neutrino Source Decay Ring
Decay ring Br 1500 Tm B 5 T C 7000
m Lss 2500 m 6He g 150 18Ne g 60
Ion acceleration Linac
PS
Acceleration to medium energy Bunching ring
and RCS
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Strongly linked Tasks

• High power proton driver ? TASK Proton
  Accelerator.
• 5 MW 5mA CW superconducting proton linac.
• Ion production (Ne) ? TASK Direct Target
  Ion Source.
• 100 kW target station.
• Ion production (He) ? TASK Solid
  Converter-Target/Ion Source.
• 100 kW target station.
• Pulsed ECR source ? TASK Beam Preparation.
• 60 GHz pulsed source to give time structure.
• Ion acceleration ? TASK Heavy Ion
  Accelerator.
• Acceleration to 100 MeV/n
• Radiation aspects ? TASK Safety
  Radioprotection.
• General radioprotection aspects, does not include
  collimation system(s).
• Physics case ? TASK Physics
  Instrumentation.
• Low energy Beta Beam physics case and potential
  use of (parts of) beta beam complex for
  nuclear physics.
• High energy Beta Beam physics case is not
  included in any task!

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Beta Beam Work Units

1. Low energy ring(s) design (bunching low energy
   acceleration).
2. Acceleration in PS and SPS (HW modifs,
   acceleration schemes, new PS).
3. Decay ring design transfer lines.

Major activities

• Transverse and longitudinal beam dynamics.
• Radiation protection, machine protection,
  collimation.
• Magnet and RF engineering.
• Instrumentation.
• Power converters.
• Vacuum.
• Technical infrastructure.
• (Control system should be addressed later to
  use newest technology).

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Preliminary Planning (I)

• 0 6 months
• Define working areas and links with other EURISOL
  tasks.
• Refine and improve base line scenario.
• Consistent parameter list (physics, other tasks).
• Final choice of base line design.
• 6 24 (18) months
• Optics design of low energy rings, decay ring and
  TL.
• Beam dynamics simulations along complete chain
  with PS, SPS.
• Basic scheme for machine protection
• Identification of critical processes (beam
  dynamics)
• Identification of critical hardware components.
• Preparation of intermediate report.

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Preliminary Planning (II)

• 18 (24) 36 months
• Final optimisation refinement of beam dynamics
  and optics.
• General layout and technical design work.
• Technical design of critical components.
• 36 48 months
• Preparation of Beta Beam Complex technical design
  (including technical infrastructure, cost
  estimate, time estimate).
• Preparation of final report.

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Manpower Requirements

• Manpower will be needed in sequential order, not
  parallel.
• The manpower requirement does not include beta
  beam related activities in other Eurisol Design
  Study Tasks!

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Prototyping Work

• At present there is no prototyping work foreseen
  within the Beta Beam Task.
• Beta Beam related prototyping work is foreseen in
  the EURISOL task Beam Preparation (A. Jokinen).
• Development of 60 GHz pulsed ECR source
  (Pascal Sortais et al. LPSC-Grenoble)

Travel Budget

• Estimated travel budget requirements 40 k/year

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Potential Partner Institutes

• CEA, France
• CERN, Switzerland
• GSI, Germany
• IN2P3, France
• INFN, Italy
• RAL, UK
• TRIUMF, Canada

Next Steps

• Contact all colleagues that have shown interest
  to participate to the Beta Beam task.
• First task group meeting to prepare Beta Beam
  task proposal Wednesday, 14. January 2004.

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Conclusions

• Beta Beam design study is well integrated in the
  EURISOL design study.
• Strong synergies between Beta Beam and several
  other EURISOL tasks.
• Good progress is made but final planning and
  proposition can only be made after discussions
  between participants of Beta Beam task and
  related tasks.