Speaker
Description
The ISOL (Isotope Separation On-Line) facility at RAON (Rare Isotope Accelerator complex for ON-line experiments) generates various rare isotopes (RIs) by bombarding protons onto heavy element targets such as uranium. Since March 2023, surface ionized RI beams of Li, Na, Al, Cs, and Ba have been successfully extracted using SiC and LaC2 targets at the ISOL facility.
The mass number was selected using an electromagnet system with a mass resolution (A/ΔA) of 400. The nuclides and intensities of the RI beams were identified by measuring and analyzing the gamma-ray spectra using the HPGe of the RIID (RI Identification) station.
Among the target-generated RIs, 25Na was selected and passed through the RFQ-CB (Cooler Buncher), then charge-bred to 5+ through the EBIS (Electron Beam Ion Source), and accelerated to an energy of 16.5 MeV/u at the SCL3 (Super Conducting Linac 3) post-accelerator. The accelerated RI beam was verified at KoBRA (Korea Broad acceptance Recoil spectrometer and Apparatus), completing the integrated operation test of the Cyclotron-ISOL-SCL3-KoBRA system. Additionally, Na and Al isotope beams were supplied to very low-energy experimental systems, such as MMS (Mass Measurement System) and CLS (Collinear Laser Spectroscopy), to conduct experiments including precise mass measurements and nuclear charge radius measurements.
This presentation will show the overall development progress and status of the RAON ISOL facility.
