Speaker
Description
The High Intensity Heavy-ion Accelerator Facility (HIAF) is currently under construction at the Institute of Modern Physics (IMP), Chinese Academy of Sciences. It aims to deliver high-intensity heavy-ion beams for exploring effective interactions within atomic nuclei, revealing the origin of heavy elements in the universe, and addressing key technical challenges related to irradiation effects. To fulfill functions including beam capture, acceleration, merging, and compression, five RF systems are implemented in the HIAF booster ring. These systems operate across a frequency range of 0.29 MHz to 2.1 MHz, with gap voltages of up to 70 kV. Each system uses magnetic alloy-loaded cavity driven by tetrode-based amplifier. Each cavity incorporates 24 Φ780mm high-performance domestic magnetic alloy ring cores. To achieve precise stabilization of amplitude and phase, a new multi-harmonic digital low-level RF control system based on VPX architecture has been developed， capable of regulating harmonics from the 1st through the 8th. This presentation will cover the latest developments and test results for the RF systems.
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