Software-Defined Radio Based Feedback System for Beam Spill Control in Particle Accelerators

Authors

Keywords:

software radio, GNURadio, DSP, GRCon, Feedback, Accelerator, Synchrotron, Spill, RF Knock Out, Slow Extraction, Excitation

Abstract

Controlling stored beams in particle accelerators requires specially designed RF signals, such as needed for spill control via transverse excitation. The software-defined radio (SDR) technology is adopted as a low cost, yet highly flexible setup to generate such signals in the kHz to MHz regime. A feedback system is build using a combination of digital signal processing with GNU Radio and RF Network-on-Chip (RFNoC) on a Universal Software Radio Peripheral (USRP). The system enables digitization of signals from particle detectors and direct tuning of the produced RF waveforms via a feedback controller – implemented on a single device. To allow for triggered operation and to reduce the loop delay to a few ms, custom OOT and RFNoC blocks have been implemented. This contribution reports on the implementation and first test results with beam of the developed spill control system.

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Published

2023-09-14

Issue

Vol. 8 No. 1 (2023): Proceedings of the 13th GNU Radio Conference

Section

Articles

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