Author: Kamigaito, O.
Paper Title Page
MOB05 Rare-Isotope Beam Facilities in Asia 28
  • O. Kamigaito
    RIKEN Nishina Center, Wako, Japan
  Growing activities in the RIB facilities in Asian countries will be reviewed. Current status and future development will be discussed.  
slides icon Slides MOB05 [8.967 MB]  
THB01 New Developments in Low-Z Gas Stripper Sstem at RIKEN Radioactive Isotope Beam Factory (RIBF) 199
  • H. Okuno, N. Fukunishi, H. Hasebe, H. Imao, O. Kamigaito, M. Kase, H. Kuboki
    RIKEN Nishina Center, Wako, Japan
  Electron stripping process from heavy ion in material is a useful tool in accelerator complex to give higher charge state of the ion, allowing its effective acceleration. This process is competed with electron capture process and reach to the equilibrium charge state. Carbon foils is convenient for charge stripper but have short lifetime due to thermal stress and sputtering in the case of high power beam of heavy ion such as uranium. Gas is basically free from lifetime but gives lower charge state due to absent of density effect. Therefore, charge stripper especially for uranium beams at 10-20 MeV/u could be a bottle-neck problem in high power heavy ion facility such as RIBF, FRIB and FAIR. A charge stripper using low-Z gas (He or H2) is an important candidate to solve the problem because the high equilibrium mean charge states for the low-Z gas stripper are expected due to the suppression of the electron capture process. This presenation will describe the results for the develeopments and tests of He gas stripper for uranium beams at 11 MeV/u.  
slides icon Slides THB01 [7.108 MB]