title: Superconducting magnets for the RAON electron cyclotron resonance ion source.
abstract: The RAON linear accelerator of Rare Isotope Science Project has been developed since 2011, and the superconducting magnet for ECRIS was designed. The RAON ECR ion source was considered as a 3rd generation source. The fully superconducting magnet has been designed for operating using 28 GHz radio frequency. The RAON ECRIS operates in a minimum B field configuration which means that a magnetic sextupole field for radial confinement is superimposed with a magnetic mirror field for axial confinement. The highest field strength reaches 3.5 T on axis and 2 T at the plasma chamber wall for operating frequency up to 28 GHz. In this paper, the design results are presented of optimized superconducting magnet consisting of four solenoids and sextupole. The prototype magnet for ECRIS was fabricated and tested to verify the feasibility of the design. On the basis of test results, a fully superconducting magnet will be fabricated and tested.
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, South Korea.
authors.forename: S
authors.initials: S
authors.lastname: Choi
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, South Korea.
authors.forename: Y
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, South Korea.
authors.forename: I S
authors.initials: IS
authors.lastname: Hong
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, South Korea.
authors.forename: D
authors.initials: D
authors.lastname: Jeon