Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/104898
Title: Application of reinforcement learning in the LHC tune feedback
Authors: Grech, Leander
Valentino, Gianluca
Alves, Diogo
Hirlander, Simon
Keywords: Reinforcement Learning
Large Hadron Collider (France and Switzerland)
Machine learning
Issue Date: 2022
Publisher: Frontiers Research Foundation
Citation: Grech, L., Valentino, G., Alves, D., Hirlaender, S. (2022). Application of reinforcement learning in the LHC tune feedback. Frontiers in Physics, 10, 929064.
Abstract: The Beam-Based Feedback System (BBFS) was primarily responsible for correcting the beam energy, orbit and tune in the CERN Large Hadron Collider (LHC). A major code renovation of the BBFS was planned and carried out during the LHC Long Shutdown 2 (LS2). This work consists of an explorative study to solve a beam-based control problem, the tune feedback (QFB), utilising state-of-the-art Reinforcement Learning (RL). A simulation environment was created to mimic the operation of the QFB. A series of RL agents were trained, and the best-performing agents were then subjected to a set of well-designed tests. The original feedback controller used in the QFB was reimplemented to compare the performance of the classical approach to the performance of selected RL agents in the test scenarios. Results from the simulated environment show that the RL agent performance can exceed the controller-based paradigm.
URI: https://www.um.edu.mt/library/oar/handle/123456789/104898
Appears in Collections:Scholarly Works - FacICTCCE

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