Keyword: cyclotron
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MO3A02 Commissioning of a New Injector for the RIKEN RI-Beam Factory DTL, cavity, injection, rfq 125
 
  • N. Sakamoto, M. Fujimaki, H. Hasebe, Y. Higurashi, O. Kamigaito, H. Okuno, K. Suda, T. Watanabe, K. Yamada
    RIKEN Nishina Center, Wako, Japan
  • R. Koyama
    SHI Accelerator Service Ltd., Tokyo, Japan
  
  A new injector for the RIKEN RI-Beam Factory (RIBF) has been fully commissioned since October 2011. The injector accelerates ions of m/q=6.8 up to 670 keV/u. In order to save the cost and space, a direct coupling scheme was adopted for rf coupling between the cavity and amplifier, based on an elaborate design with the Microwave Studio code. It has worked out very stably in these three months, making the uranium beam intensity higher by one order of magnitude. Moreover, it is now possible to operate the RIBF and GARIS facility for the super-heavy element synthesis independently.  
slides icon Slides MO3A02 [19.503 MB]  
 
TUPLB06 Status of the Rare Isotope Science Project in Korea ISOL, ion, linac, target 455
 
  • J.-W. Kim
    IBS, Daejeon, Republic of Korea
  
  Funding: National Research Foundation of Korea
A heavy-ion accelerator facility is being designed in Korea for the production of rare isotope beams under the name of rare isotope science project (RISP). The project is funded and officially started in Jan. 2012. The accelerator complex is composed of three main accelerators: a superconducting linac to use in-flight fragmentation (IF) method in generating isotope beams, a 70 kW proton cyclotron for the ISOL method, and a superconducting post accelerator for re-acceleration of rare isotope beams to the energy range of 18 MeV/u. The minimum energy of a U beam required for the IF driver is 200 MeV/u at the beam power of 400 kW. The beam current of U ions in high charge states is limited by the performance of existing ECR ion sources. This facility will be unique in the aspect that state-of-art accelerators are facilitated for both the IF and ISOL drivers and combined to produce extreme exotic beams. Also, standalone operation of each accelerator will allow us to accommodate diverse users from beam application fields as well as nuclear physics. The current status of the design efforts will be presented. 		 
slides icon Slides TUPLB06 [1.901 MB]  
 
TUPB028 Status of the Rare Isotope Science Project in Korea ISOL, ion, linac, target 534
 
  • J.-W. Kim
    IBS, Daejeon, Republic of Korea
  
  Funding: National Research Foundation of Korea
A heavy-ion accelerator facility is being designed in Korea for the production of rare isotope beams under the name of rare isotope science project (RISP). The project is funded and officially started in Jan. 2012. The accelerator complex is composed of three main accelerators: a superconducting linac to use in-flight fragmentation (IF) method in generating isotope beams, a 70 kW proton cyclotron for the ISOL method, and a superconducting post accelerator for re-acceleration of rare isotope beams to the energy range of 18 MeV/u. The minimum energy of a U beam required for the IF driver is 200 MeV/u at the beam power of 400 kW. The beam current of U ions in high charge states is limited by the performance of existing ECR ion sources. This facility will be unique in the aspect that state-of-art accelerators are facilitated for both the IF and ISOL drivers and combined to produce extreme exotic beams. Also, standalone operation of each accelerator will allow us to accommodate diverse users from beam application fields as well as nuclear physics. The current status of the design efforts will be presented. 		 
 
TUPB077 Thorium Energy neutron, target, proton, linac 651
 
  • S. Peggs
    BNL, Upton, Long Island, New York, USA
  • R. Cywinski, R. Seviour
    University of Huddersfield, Huddersfield, United Kingdom
  • S. Peggs
    ESS, Lund, Sweden
  
  The potential for using thorium as an alternative or supplement for uranium in fission power generation has long been recognised, with growing concerns over nuclear waste, safety and proliferation. Thorium may be used in solid fuel form, or in molten salt systems. In some approaches the fuel can incorporate components from spent nuclear fuel (minor actinides, plutonium) to also serve a transmutation function. We consider the benefits and drawbacks of using an accelerator driven subcritical system, for both solid fuel and molten salt cases, in particular addressing the power and reliability requirements of the accelerator. We outline the research that will be necessary to lead to an informed choice.  
 
FR1A01 Heavy Ion Strippers ion, plasma, heavy-ion, electron 1050
 
  • F. Marti
    FRIB, East Lansing, Michigan, USA
  
  Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
Stripping of high current heavy ion beams is a key technology for future accelerator as FAIR (Germany) and FRIB (USA) and current ones as RIBF (RIKEN, Japan). A small change in the peak charge state produced at the stripper could require a significant expense in additional accelerating stages to obtain the required final energy. The main challenges are the thermal effects due to the high power deposition (~ 50 kW/mm3) and the radiation damage due to the high energy deposition. The effects of heavy ion beams are quite different from proton beams because of the much shorter range in matter. We will present an overview talk considering charge stripping devices like carbon foils and gas cells used worldwide as well as the current research efforts on plasma stripping, liquid metal strippers, etc. The advantages and disadvantages of the different options will be presented. 		 
slides icon Slides FR1A01 [4.174 MB]