Author: Rank, J.
Paper Title Page
WEPHA063 Precision Insertion Device Control and Simultaneous Monochromator Fly Scanning for NSLS-II 1244
  • J. Sinsheimer, P.L. Cappadoro, T.M. Corwin, J. Escallier, D.A. Harder, D.A. Hidas, A. Hunt, M. Musardo, J. Rank, C. Rhein, T. Tanabe, I. Waluyo
    BNL, Upton, New York, USA
  Funding: U.S. Department of Energy DE-SC0012704
Beginning in January of 2019, 8 of the 10 In-Vacuum Undulators installed in the NSLS-II storage ring underwent in-house in-situ control system upgrades allowing for control of the magnetic gap during motion down to the 50 nm level with an in-position accuracy of nearly 5 nm. Direct linking of Insertion Devices and beamline monochromators is achieved via a fiber interface allowing precise, simultaneous, nonlinear motion of both devices and providing a fast hardware trigger for real-time accurate insertion device and monochromator fly scanning. This presentation will discuss use case scenarios at light source facilities and detail the precision achieved for simultaneous motion. Particular attention is given to the precision at which undulator energy harmonic peaks can be tracked and the variation of the peak flux in motion.
poster icon Poster WEPHA063 [1.763 MB]  
DOI • reference for this paper ※  
About • paper received ※ 30 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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