Author: Morinobu, S.
Paper Title Page
MOPEA031 Study of Extraction and Transport of Intense Highly Charged Ions for 18GHz SC-ECRIS at RCNP 145
  • T. Yorita, M. Fukuda, K. Hatanaka, K. Kamakura, S. Morinobu, A. Tamii, Y. Yasuda
    RCNP, Osaka, Japan
  An 18 GHz superconducting ECRIS has also been installed to increase beam currents and to extend the variety of ions, especially for highly charged heavy ions which can be accelerated by RCNP cyclotrons. The mirror magnetic field is produced with four liquid-helium-free superconducting coils and the permanent magnet hexapole is of Halbach type with 24 pieces of NEOMAX-44H material. The production development of several ions like B, O, N, Ne, Ar, Ni, Kr and Xe has been performed. Further study for its beam extraction and transport have been done in order to increase the beam injected to cyclotron. The parameters of extraction systems and electrostatic lens are optimized taking account with magnetic field leakage from AVF Cyclotron. Emittance study also has been done to see the quality of injection beam. For that purpose two types of emittance monitor have been developed. One is using three wire profile monitor and another has BPM with rotating wire for quick measurement. The details of these developments will be presented.