Abstract PUBDB-2022-03237

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Controller Latency Improvements at REGAE

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2022

Low Level RF Workshop 2022, WindischWindisch, Switzerland, 9 Oct 2022 - 13 Oct 20222022-10-092022-10-13  GO

Abstract: REGAE is a facility for ultrafast electron diffraction (UED) experiments based on a normal conducting S-band gun and buncher cavity. Their RF regulation is performed by a single cavity controller, implemented by an FPGA firmware and operating at 125 MHz. With a variant of the Struck SIS8300-KU controller board that is equipped with 250 MSps ADCs we were able to increase the frequency of the complete digital processing chain to 250 MHz. This includes the ADCs, field detection, feedback controller and DAC. Doubling the frequency reduced the overall controller latency by almost a factor of two. In the poster we show which firmware components had to be optimized or rewritten to achieve the 250 MHz clock rate.


Contributing Institute(s):
  1. Strahlkontrollen (MSK)
Research Program(s):
  1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
Experiment(s):
  1. Relativistic Electron Gun for Atomic Exploration

Appears in the scientific report 2022
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 Record created 2022-07-01, last modified 2022-12-14


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