Search

The first phase of the Rare Isotope Science Project was completed in 2022 by constructing the superconducting linac called the SCL3 and seven experimental systems including a low-energy beam spectrometer called the KoBRA (Korea Broad acceptance Recoil spectrometer and Apparatus). Based on the conceptual and technical designs made in 2011 and 2013, respectively, the layout and requirements of the conventional magnet system were prepared. Over 100 magnets and their peripheral equipment were manufactured and installed over a 6-year period. Operation of the conventional magnet system was instrumental during the beam commissioning of the SCL3 and the KoBRA in 2023. In this paper, the construction, installation, and operation of the conventional magnet system of the SCL3 and KoBRA beamline are reviewed.

The Large Acceptance Multi-Purpose Spectrometer (LAMPS) is one of the experimental facilities for the Rare Isotope Science Project (RISP). It will be located downstream of the Ion-flight fragment (IF) separator. The LAMPS consists of a solenoid spectrometer and a neutron detector. A time projection chamber (TPC) in the solenoid spectrometer reconstructs tracks of charged particles from nucleus-nucleus collisions under a uniform magnetic field. The size of the LAMPS solenoid magnet is about 3 × 3 × 3.5 m3, and magnetic field is ~ 0.5 T. A field uniformity (ΔB/B) of ±1% is required in the TPC region for more accurate detection of particles.

The Korea heavy ion medical accelerator (KHIMA) project is developing and constructing the heavy ion medical accelerator for the first time in Korea since 2010. This paper describes the status of high energy beam transfer line (HEBT), which connects the superconducting cyclotron to the treatment rooms. The HEBT provides a patient with 145–430 MeV/u carbon (12C6+) beam to cure cancer. The HEBT is consisted of 6 beam lines (4 horizontal, 1 vertical and 1 oblique). The size of the design HEBT is 41 m in length, 11 m in width and 17 m in height. Total number of magnets is 53 for focusing magnets and 22 for bending magnets. In the description, the current design status of the HEBT is described.