Author: Washington, R.A.
Paper Title Page
MOPV020 Digitisation of the Analogue Waveform System at ISIS 169
  • W.A. Frank, B.R. Aljamal, R.A. Washington
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
  Funding: UKRI/STFC
The Analogue Waveform System (AWS) at the ISIS Neutron and Muon Source is a distributed system that allows operators to select and monitor analogue waveforms from equipment throughout the facility on oscilloscopes in the Main Control Room (MCR). These signals originate from key accelerator systems in the linear accelerator and synchrotron such as the ion source, magnets, beam diagnostics, and radio frequency (RF) systems. Historical data for ISIS is available on the control system for many relevant channels. However, at present, to avoid disrupting the oscilloscope displays in the MCR, only an hourly image capture of the AWS waveforms is stored. This is largely inadequate for potential data-intensive applications such as anomaly detection, predictive maintenance, post-mortem analysis, or (semi-)automated machine setup, optimization, and control. To address this, a new digital data acquisition (DAQ) system is under development based on the principle of large channel count, simultaneous DAQ. This paper details the proposed architecture of the system and the results of initial prototyping, testing, and commissioning.
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About • Received ※ 08 October 2021       Revised ※ 21 October 2021       Accepted ※ 16 December 2021       Issue date ※ 04 February 2022
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