Speaker
Description
Digital Network Analyzers (DNA) have been implemented in many LLRF systems to help characterize and tune digital feedback loops. A modular DNA has been developed on FPGA and integrated into the current RHIC LLRF infrastructure. The DNA characterizes a system by injecting a complex baseband chirp to calculate the system’s magnitude and phase response. The DNA is also able to measure the open loop gain, gain and phase margins, and loop delay to help fine tune feedback loop parameters. The DNA has been verified with an implementation of one-turn delay feedback (OTFB) on the bench to maximize gain and stability. The DNA and OTFB are planned to be evaluated with dedicated beam time during a RHIC Accelerator Physics Experiment (APEX) study of transient beam loading. Once verified, the DNA will be integrated into the Common Hardware Platform for the future Electron-Ion Collider (EIC).
| Abstract Category | Measurement and Control |
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