Author: O’Rourke, R.
Paper Title Page
TUPDP117 Classification and Prediction of Superconducting Magnet Quenches 856
 
  • J.A. Einstein-Curtis, J.P. Edelen, M.C. Kilpatrick, R. O’Rourke
    RadiaSoft LLC, Boulder, Colorado, USA
  • K.A. Drees, J.S. Laster, M. Valette
    BNL, Upton, New York, USA
 
  Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award Number DE-SC0021699.
Robust and reliable quench detection for superconducting magnets is increasingly important as facilities push the boundaries of intensity and operational runtime. RadiaSoft has been working with Brookhaven National Lab on quench detection and prediction for superconducting magnets installed in the RHIC storage rings. This project has analyzed several years of power supply and beam position monitor data to train automated classification tools and automated quench precursor determination based on input sequences. Classification was performed using supervised multilayer perceptron and boosted decision tree architectures, while models of the expected operation of the ring were developed using a variety of autoencoder architectures. We have continued efforts to maximize area under the receiver operating characteristic curve for the multiple classification problem of real quench, fake quench, and no-quench events. We have also begun work on long short-term memory (LSTM) and other recurrent architectures for quench prediction. Examinations of future work utilizing more robust architectures, such as variational autoencoders and Siamese models, as well as methods necessary for uncertainty quantification will be discussed.
 
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP117  
About • Received ※ 08 October 2023 — Revised ※ 22 October 2023 — Accepted ※ 05 December 2023 — Issued ※ 07 December 2023
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TUSDSC02 Integrating Online Analysis with Experiments to Improve X-Ray Light Source Operations 921
 
  • N.M. Cook, E.G. Carlin, J.A. Einstein-Curtis, R. Nagler, R. O’Rourke
    RadiaSoft LLC, Boulder, Colorado, USA
  • A.M. Barbour, M. Rakitin, L. Wiegart, H. Wijesinghe
    BNL, Upton, New York, USA
 
  Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research under Award Number DE-SC00215553.
The design, execution, and analysis of light source experiments requires the use of sophisticated simulation, controls and data management tools. Existing workflows require significant specialization to accommodate specific beamline operations and data pre-processing steps necessary for more intensive analysis. Recent efforts to address these needs at the National Synchrotron Light Source II (NSLS-II) have resulted in the creation of the Bluesky data collection framework, an open-source library for coordinating experimental control and data collection. Bluesky provides high level abstraction of experimental procedures and instrument readouts to encapsulate generic workflows. We present a prototype data analysis platform for integrating data collection with real time analysis at the beamline. Our application leverages Bluesky in combination with a flexible run engine to execute user configurable Python-based analyses with customizable queueing and resource management. We discuss initial demonstrations to support X-ray photon correlation spectroscopy experiments and future efforts to expand the platform’s features.
 
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUSDSC02  
About • Received ※ 06 October 2023 — Revised ※ 22 October 2023 — Accepted ※ 11 December 2023 — Issued ※ 14 December 2023
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