Author: Kim, E.H.
Paper Title Page
TUPAC04 Pre-separator Design of the In-flight Fragment Separator Using High-power Beam 454
 
  • J.Y. Kim, D.G. Kim, E.H. Kim, J.-W. Kim, M. Kim, M. Kim, C.C. Yun
    IBS, Daejeon, Republic of Korea
 
  In-flight fragment separator of the rare isotope science project (RISP) is a main device to produce isotope beams for nuclear science research and applications. The separator is divided into pre and main stages. The pre-separator contains a thin target to produce the isotope beam and beam dump to remove unreacted primary beam. The maximum primary beam power is 400 kW. As a result, radiation level is very high in the target area and some of the magnets will utilize high-Tc superconductor coils operating at 20-50 K to efficiently remove the radiation heat deposited on the coil. A major function of the pre-separator is to remove the primary beam, which is complicated by different charge states produced when the primary beam passes through the target and wedge-shaped energy degrader. Some detailed calculations in beam optics and on the layout of the major separator components have been performed using GICOSY and LISE++ considering contaminant isotope beams due to nuclear reactions. Simulation results and some prototyping works will be presented.