Abstract
Sirius is a Synchrotron Light Source Facility based on a 4th generation low emittance storage ring. The facility is presently under construction in Campinas, Brazil, and comprises a 3 GeV electron storage ring, a full energy booster synchrotron and a 120 MeV linac. The booster RF system is based on a single 5-cell cavity driven by a 50 kW amplifier at 500MHz and is designed to operate at 2 Hz rate. The storage ring RF system will start with 1 normal conducting 7-cell cavity. In the final configuration, the system will comprise 2 superconducting cavities, each one driven by a 240 kW RF amplifier. A digital LLRF system based on ALBA LLRF has been designed and commissioned to control 3 different types of cavities: 2 normal conducting single cell cavities, one multi-cell cavity driven by 2 amplifiers and one superconducting cavity driven by 4 amplifiers. The first LLRF System was installed and commissioned in the Sirius Booster in 2019. The performance of the control loops with beam, together with other utilities of the system like automatic start-up, conditioning, fast interlocks and post-mortem analysis will be presented in this paper, as well as possible upgrades for the future
Published Version
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