Oct 9 – 13, 2022
FHNW Campus Brugg-Windisch
Europe/Zurich timezone

Next Generation FRIB LLRF Controller

Oct 12, 2022, 3:07 PM
Lichthof (Building 1)


Building 1

Poster Low Level RF Workshop 2022 Poster Session


Shriraj Kunjir (FRIB) Enrique Bernal (FRIB) Shen Zhao (FRIB)


The Facility for Rare Isotope Beams (FRIB) opened for full user operation in May 2022 and is currently prototyping a 644 MHz superconducting (SC) cavity and cryomodule for an energy upgrade of the accelerator to 400 MeV/u. The low level radio frequency (LLRF) controllers in operation are based on Xilinx Spartan 6 field programmable gate array (FPGA) and support frequencies up to 322 MHz. With requirements for higher frequency operation there was a need to upgrade the current LLRF controller. A next generation prototype controller was designed, developed and fabricated using Xilinx Zynq System on Chip (SoC) FPGA with high-speed JESD204 serial interface to fast 14-bit analog to digital (ADC) and 16-bit digital to analog (DAC) data converters and capable of high frequency direct sampling. A brief overview of the prototype LLRF controller, its features, improvements along with Experimental Physics and

Industrial Control System (EPICS) Input/Output Controller (IOC), fast data capture at native resolution, remote update management implementation and future projects will be discussed in this paper.

Primary author


Presentation materials