Speaker
Description
RAON is a heavy ion accelerator consisting of a cryomodule containing a superconducting cavity in the SCL3 section and a warm section with a quadrupole magnet and a diagnostic chamber. Two types of superconducting RF cavities are utilized, arranged in three types of cryomodules: the 81.25 MHz quarter-wave resonator (QWR) and the 162.5 MHz half-wave resonator (HWR). In 2024, beam commissioning was carried out with the entire SCL3 section in operation. RF cavity tuning was successfully achieved using a systematic phase scan procedure. During this period, an argon beam with a current of 40 μA and a sodium beam with a rate of ~10,000 particles per second were delivered to the experimental area. The accelerator was operated at an RF power of 4 W and a maximum duty cycle of 10%. The beam diagnostic system included beam position monitors (BPM), wire scanners (WS), Faraday cups (FC), beam loss monitors (BLM), and beam loss collectors (BLC). All current-based diagnostic signals, including BLC and Faraday cup signals, were processed through the mTCA standard-based data acquisition system. This poster describes the integrated operation of the diagnostic and RF systems and summarizes key observations made during the commissioning of the SCL3 linear accelerator.
Funding Agency
This work was supported by the Institute for Basic Science(IBS-I001-01-2025-a01)
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