JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Fu, X.L. AU - Au, T. AU - Fong, K. AU - Zheng, Q. ED - Zhang, Tianjue ED - Schaa, Volker R.W. ED - An, Shizhong ED - Kiselev, Daniela ED - Liu, Yuntao ED - Li, Pengzhan TI - TRIUMF LLRF Control System Upgrade J2 - Proc. of CYCLOTRONS2022, Beijing, China, 05-09 December 2022 CY - Beijing, China T2 - International Conference on Cyclotrons and their Applications T3 - 23 LA - english AB - The LLRF system for Transfer line from Drift Tube LINAC(DTL) to Superconducting Linac (SCB) (DSB) was an analog-digital hybrid system running at 35.36MHz. The system controls the amplitude/phase and tuning for a buncher cavity on the beamline. During the 2022 October shutdown, the system is upgraded to a new fully-digital LLRF system. The new digital LLRF system is based on TRIUMF’s universal LLRF hardware with a new firmware. Instead of using a VXI crate, the new system adopts a NIM bin and uses USB communication with the local control PC. The amplitude/phase regulation is implemented in the FPGA firmware, and the tuning loop is implemented in the PC software, but driven by the FPGA. The Debian 11 linux OS is running on ARM CPU, and the new digital LLRF system works as a standard window HID device. The linux OS allows the firmware be updated in-situ using Ethernet communication. The detailed design is described in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 91 EP - 94 KW - LLRF KW - controls KW - hardware KW - cavity KW - Linux DA - 2023/10 PY - 2023 SN - 2673-5482 SN - 978-3-95450-212-7 DO - doi:10.18429/JACoW-CYCLOTRONS2022-MOPO015 UR - https://jacow.org/cyclotrons2022/papers/mopo015.pdf ER -