LLRF System Considerations for a Compact, Commercial C-band Accelerator using the AMD Xilinx RF-SoC

J. Einstein-Curtis; J. Edelen; B. Gur; M. Henderson; G. Khalsa; M. Kilpatrick; R. O'Rourke; R. Augustsson; A. Diego; A. Smirnov; S. Thielk; B. Hong; Z. Li; C. Liu; J. Merrick; E. Nanni; L. Ruckman; S. Tantawi; F. Zuo

arXiv · 2310.04209

LLRF System Considerations for a Compact, Commercial C-band Accelerator using the AMD Xilinx RF-SoC

J. Einstein-Curtis·J. Edelen·B. Gur·M. Henderson·G. Khalsa·M. Kilpatrick·R. O'Rourke·R. Augustsson·A. Diego·A. Smirnov·S. Thielk·B. Hong·Z. Li·C. Liu·J. Merrick·E. Nanni·L. Ruckman·S. Tantawi·F. Zuo

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Abstract

This work describes the LLRF and control system in use for a novel accelerator structure developed for a compact design operating in C-band developed by SLAC, with collaboration from RadiaBeam and RadiaSoft. This design is a pulsed RF/pulsed beam system that only provides minimal monitoring for control of each two-cavity pair. Available signals include only a forward and reflected signal for each pair; such a design requires careful consideration of calibration and power-on routines, as well an understanding of how to correct for disturbances caused by the entire RF signal chain, including a new SSA, klystron, and distribution system. An AMD Xilinx RF-SoC with a separate supervisory computer is the LLRF system core, with on-board pulse-to-pulse feedback corrections. This work presents the current status of the project, as well as obstacles and manufacturing plans from the viewpoint of developing for larger-volume manufacturing. This material is based upon work supported by the Defense Advanced Research Projects Agency under Contract Numbers 140D0423C0006 and 140D0423C0007. The views, opinions, and/or findings expressed are those of the author(s) and should not be interpreted as representing the official views or policies of the Department of Defense or the U.S. Government.

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J. Einstein-Curtis, J. Edelen, B. Gur, M. Henderson, G. Khalsa, M. Kilpatrick, R. O'Rourke, R. Augustsson, A. Diego, A. Smirnov, S. Thielk, B. Hong, Z. Li, C. Liu, J. Merrick, E. Nanni, L. Ruckman, S. Tantawi, F. Zuo. 2023-10-06. LLRF System Considerations for a Compact, Commercial C-band Accelerator using the AMD Xilinx RF-SoC. https://arxiv.org/abs/2310.04209

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