10–15 Aug 2025
SAFE Credit Union Convention Center
America/Los_Angeles timezone

Machine learning at the Spallation Neutron Source accelerator and target

Not scheduled
20m
SAFE Credit Union Convention Center

SAFE Credit Union Convention Center

1401 K St, Sacramento, CA 95814
Poster Presentation MC6 - Beam Instrumentation, Controls, AI/ML, and Operational Aspects MC6

Speaker

Dr Willem Blokland (Oak Ridge National Laboratory)

Description

We describe the ongoing efforts to apply Machine Learning techniques to improve the performance of our accelerator and target. Specially, we are looking to minimize halo beam losses in the absence of a proper physics model, automatically detect and log anomalies in the target support systems such as cooling, and detect and prevent errant beam pulses in the linac. We also describe the infrastructure we use to acquire and stream data to the GPU cluster for training, our code development cycle, and edge computing for model inference. To minimize halo beam losses, we use a Reinforcement Learning technique tested on a virtual accelerator. The target anomaly detection is trained on archived data using incomplete physics models and is made part of the existing target reporting system. The errant beam prevention analyzes beam current and beam phase waveforms as well as accelerator configuration data to predict errant pulses. We also develop continual learning to adapt to changes in the accelerator.

Funding Agency

ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725

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Author

Dr Willem Blokland (Oak Ridge National Laboratory)

Co-authors

Alexander Zhukov (Oak Ridge National Laboratory) Dr Anant Ray (Oak Ridge National Laboratory) Drew Winder (Oak Ridge National Laboratory) Kishansingh Rajput (Thomas Jefferson National Accelerator Facility) Malachi Schram (Thomas Jefferson National Accelerator Facility)

Presentation materials

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