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DOI:10.18429/JACoW-IPAC2016-THPOW037
Title Simulated and Measured Magnetic Performance of a Double APPLE-II Undulator at the Canadian Light Source
Authors
  • C.K. Baribeau, L.O. Dallin, J.M. Helfrich, T.M. Pedersen, M.J. Sigrist, W.A. Wurtz
    CLS, Saskatoon, Saskatchewan, Canada
Abstract Assembly and shimming are underway for a double APPLE-II type elliptically polarized undulator (i.e. two magnet arrays installed side by side on a single support structure) at the Canadian Light Source. The device is planned to be installed in spring 2017. Extensive preparation was done prior to device assembly, particularly in development of a simulated annealing algorithm for magnet virtual shimming, as well as assembly procedures that minimized positional errors in the installed magnet blocks. In this paper we present measurements taken throughout the shimming process, and compare with predictions from a RADIA model where each magnet block was magnetized uniquely according to individual Helmholtz coil measurements.
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Conference IPAC2016, Busan, Korea
Series International Particle Accelerator Conference (7th)
Proceedings Link to full IPAC2016 Proccedings
Session Poster Session
Date 12-May-16   16:00–18:00
Main Classification 02 Photon Sources and Electron Accelerators
Sub Classification T15 Undulators and Wigglers
Keywords undulator, multipole, polarization, photon, dipole
Publisher JACoW, Geneva, Switzerland
Editors Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-147-2
Published June 2016
Copyright
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