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Description
LEAF (Low Energy Heavy Ion Accelerator Facility) is a high-intensity, low-energy heavy-ion accelerator complex that features a high-performance superconducting ECR (Electron Cyclotron Resonance) ion source and a high-current, room-temperature linear accelerator. The facility delivers heavy-ion beams ranging from H2+ to uranium, with tunable beam energies between 0.3 and 1 MeV/u. Since its trial operation began in 2018, the facility has achieved remarkable beam intensities in continuous-wave (CW) mode, including: >160 pµA for the 16O ion beam, >6 pµA for the 209Bi ion beam, and >45 pµA for the 40Ar ion beam. These beam intensities are among the highest achieved by similar facilities worldwide. Recently, LEAF successfully delivered carbon ion beams with an intensity exceeding 100 pµA and an energy spread of <0.3% (FWHM) for C-C burning investigations in nuclear astrophysics. Significant results have been obtained. This paper provides an introduction to the LEAF facility.
