title: Superconducting magnet performance for 28 GHz electron cyclotron resonance ion source developed at the Korea Basic Science Institute.
abstract: A superconducting magnet for use in an electron cyclotron resonance ion source was developed at the Korea Basic Science Institute. The superconducting magnet is comprised of three solenoids and a hexapole magnet. According to the design value, the solenoid magnets can generate a mirror field, resulting in axial magnetic fields of 3.6 T at the injection area and 2.2 T at the extraction region. A radial field strength of 2.1 T can also be achieved by hexapole magnet on the plasma chamber wall. NbTi superconducting wire was used in the winding process following appropriate techniques for magnet structure. The final assembly of the each magnet involved it being vertically inserted into the cryostat to cool down the temperature using liquid helium. The performance of each solenoid and hexapole magnet was separately verified experimentally. The construction of the superconducting coil, the entire magnet assembly for performance testing and experimental results are reported herein.
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Jin Yong
authors.initials: JY
authors.lastname: Park
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Seyong
authors.initials: S
authors.lastname: Choi
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Byoung-Seob
authors.initials: BS
authors.lastname: Lee
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Jang-Hee
authors.initials: JH
authors.lastname: Yoon
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Jung-Woo
authors.initials: JW
authors.lastname: Ok
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon, South Korea.
authors.forename: Byoung Chul
authors.initials: BC
authors.lastname: Kim
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Chang Seouk
authors.initials: CS
authors.lastname: Shin
authors.affiliation: Pusan National University, Busan, South Korea.
authors.forename: Jung Keun
authors.initials: JK
authors.lastname: Ahn
authors.affiliation: Busan Center, Korea Basic Science Institute, Busan 609-735, South Korea.
authors.forename: Mi-Sook
authors.initials: MS
authors.lastname: Won