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@inproceedings{luo:ipac2021-tupab347, author = {Y.L. Luo and T.M. Huang and J. Li and H.Y. Lin and Q. Ma and Q.Y. Wang and P. Zhang and F.C. Zhao}, % author = {Y.L. Luo and T.M. Huang and J. Li and H.Y. Lin and Q. Ma and Q.Y. Wang and others}, % author = {Y.L. Luo and others}, title = {{Development of a 166-MHz 260-kW Solid-State Power Amplifier for High Energy Photon Source}}, booktitle = {Proc. IPAC'21}, pages = {2315--2317}, eid = {TUPAB347}, language = {english}, keywords = {controls, photon, status, power-supply, cavity}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-TUPAB347}, url = {https://jacow.org/ipac2021/papers/tupab347.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB347}, abstract = {{166-MHz 260-kW solid-state power amplifiers have been chosen to drive the 166.6-MHz superconducting cavities for the storage ring of High Energy Photon Source. Highly modular yet compact are desired. A total number of 112 amplifier modules of 3 kW each are combined in a multi-stage power combining topology. The final output is of 9-3/16" 50 Ω coaxial rigid line. Each amplifier module consists of 3 LDMOS transistors with individual circulator and load. Thermal simulations of the amplifier module have been conducted to optimize cooling capabilities for both travelling-wave and full-reflection operation scenarios. High efficiency, sufficient redundancy and excellent RF performances of the 260-kW system are demonstrated. A control system is also integrated and EPICS is used to manage the monitored data. The design and test results of the amplifier system are presented in this paper.}}, }