Approximate entropy analysis for nonlinear beam dynamics

Li, Yongjun; Rainer, Robert

doi:10.1103/PhysRevAccelBeams.27.011601

Title: Approximate entropy analysis for nonlinear beam dynamics

Journal Article · 10 January 2024 · Physical Review Accelerators and Beams

DOI: https://doi.org/10.1103/PhysRevAccelBeams.27.011601 · OSTI ID:2281043

; Rainer, Robert

In this paper, we applied an approximate entropy (ApEn) analysis to nonlinear beam dynamics. Due to the presence of strong nonlinear magnets, the degree of chaos in beam motion gradually increases proportionally with its amplitude. Such chaos can be quantitatively characterized with ApEn of beam turn-by-turn readings. ApEn analysis is a technique used to quantify the amount of regularity and the unpredictability of fluctuations with respect to time-series data. The ApEn, when applied as a chaos indicator, can then be used for nonlinear lattice optimization and analysis. The National Synchrotron Light Source II (NSLS-II) electron storage ring lattice was used as an example of a real-world application of our technique. Published by the American Physical Society 2024

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

Grant/Contract Number:: SC0012704

OSTI ID:: 2281043

Report Number(s):: BNL--225182-2024-TECH; 011601

Journal Information:: Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Journal Issue: 1 Vol. 27; ISSN 2469-9888; ISSN PRABCJ

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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