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A great progress on the cyclotron technologies has been achieved and a series of high-intensity cyclotron devices have been developed at China Institute of Atomic Energy (CIAE). The first 14 MeV high- intensity proton cyclotron with an extraction current exceeding 1 mA was independently developed by the department of nuclear technology and application of the CIAE in 2021. The completion of the 14 MeV/1 mA high-intensity proton cyclotron laid the foundation for China’s applications of compact high-intensity proton cyclotrons in neutron source technology. CIAE has successively established the China’s first prototype of a boron neutron capture therapy (BNCT) treatment device based on 14 MeV/1 mA high-intensity proton cyclotron. A 18 MeV/1 mA high-current proton cyclotron was developed successfully as the upgraded BNCT cyclotrons in 2024. Many kinds of BNCT medicine experiments with mice and cells for the hospitals and Universities have been finished. A a new high-intensity cyclotron based on with beam current reaching 3-5 mA is being developed at CIAE. CIAE’s high-intensity cyclotrons are playing a crucial role in the development of nuclear science and the nuclear technology applications，as well as in the production of medical radioisotopes in China.
