|EURISOL Design Study (6th Framework Programme: Research Infrastructures Action)|
The EURISOL DS will produce feasibility studies and perform technical preparatory work of the most critical parts of the future EURISOL facility. The main technical challenges and the necessary prototyping were identified during the EURISOL RTD in the 5th framework (FP5). This design study is part of the roadmap towards the EURISOL facility and cross-fertilization is expected between the design study and the design and construction of the so-called "mid-term" facilities. The conceptual design study for an associated beta-beam facility, which can benefit from the prototyping work concerning the RIB facility, is an integral part of the EURISOL DS.
Research means The schematic layout of the EURISOL facility, as proposed in the EURISOL RTD report is displayed in figure. The main parts are: the driver accelerator, production targets, post accelerator and experimental areas. The main goals of the DS will be to refine the design and demonstrate the feasibility of different parts, and to construct and test prototypes for the most technically challenging components and subsystems. In order to give a readily visible structure to the DS, the work proposed has been divided into 11 tasks related to scientific and technical issues, which have been grouped together in four topics: (i) Accelerators, (ii) Targets, (iii) Physics, Yields & Safety, and (iv) Beam Preparation & Beta-Beams.
Instruments Expertise of DAPNIA in a number of fields will be employed for the project:
* experimental nuclear physics and modelling
* detectors and electronics
* accelerator design and construction, cryogenic systems, beam control, etc.
* radiation safety, decommissioning of accelerators and nuclear reactors.
Spécificities The EURISOL 5th framework report has concluded that linear accelerators are the best option for both the driver and the post-accelerator. The driver should be optimized for the acceleration of (up to) 5 mA of 1 GeV protons, but heavy ion acceleration capability for A/q = 2 and possibly A/q = 3 should be considered. This accelerator will belong to the class called “High Power Proton Accelerators” (HPPA). No accelerator today is capable of such proton beam intensity in CW mode. Two R&D items were given maximum priority in the conclusions of the RTD report: construction of complete prototype accelerator cryomodule for low-β linac section and the development of prototypical spoke, quarter wave and re-entrant cavities with associated auxiliary RF components. The post-accelerator must accelerate heavy ions up to uranium at energies reaching 100 MeV/nucleon.
scientific and technical responsabilities * Membership in the Steering Committee of EURISOL
* Membership in Coordination Board of EURISOL
* Coordination of Task 5 "Safety and Radioprotection"
* Participation and contribution in 6 working packages (out of 12):
Task 4 "Fission target"
Task 5 "Safety and Radioprotection"
Task 7 "Proton Accelerator Design"
Task 10 "Physics and Instrumentation"
Task 11 "Beam Intensity Calculations"
Task 12 "Beta Beams"
Important moments 1 February 2005 - an official start of the project (for 4 years)
28-29 November 2005 - EURISOL DS Town Meeting, GANIL, Caen, France
15 February 2006 - deadline for the 1st Interim Annual Report
16-21 January 2006 - EURISOL physics and instrumentation workshop, ECT* Trento, Italy
State in the end of 2006 The project is progressing as planned.
Participation and contribution of DAPNIA is going according to agenda:
Tasks 4, 5 and 11:
benchmark calculations on neutron, charged particle and residual nuclei production with Monte Carlo codes are terminated. Final report is in progress.
Task 7: A set of rules to design a lattice providing acceleration of protons with minimum beam losses and minimum emittance increase was developped.
The main aspects on optics of the decay ring were the refinement of injection and merging parameters for the ion stacking. Several lattice variants with optimized injection sections were developed and detailed simulations for the bunch merging were performed. The beam input parameters for the decay ring have been established.
Perspectives The work will continue as planned during the 2nd year of the project.
Scientific balance sheet
A number of contributions/presentations in workshops/conferences
Contact D. RIDIKAS
Last update : 07/16 2009 (877)