Title |
Commissioning of Current Strips for Elliptically Polarizing Undulators at NSLS-II |
Authors |
- Y. Hidaka, O.V. Chubar, T. Tanabe
BNL, Upton, New York, USA
- C.A. Kitégi
SOLEIL, Gif-sur-Yvette, France
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Abstract |
Most of the Elliptically Polarizing Undulators (EPUs) at NSLS-II are equipped with current strips (or flat wires), attached to their vacuum chambers. These strips compensate the dynamic field integrals of the EPU to minimize undesirable nonlinear beam dynamics effect that can lead to reduction in injection efficiency and beam lifetime. For each EPU, we measured the field integrals of the insertion device alone, the current strips alone, and both, while creating horizontal bumps of different amplitudes at the straight section to assess the effectiveness of the compensation provided by the design current values for the strips. The commissioning results of these current strips are reported in this article.
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Funding |
This work is supported by U.S. DOE under Contract No. DE-SC0012704. |
Paper |
download THPAB198.PDF [0.854 MB / 4 pages] |
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Conference |
IPAC2021 |
Series |
International Particle Accelerator Conference (12th) |
Location |
Campinas, SP, Brazil |
Date |
24-28 May 2021 |
Publisher |
JACoW Publishing, Geneva, Switzerland |
Editorial Board |
Liu Lin (LNLS, Campinas, Brazil); John M. Byrd (ANL, Lemont, IL, USA); Regis Neuenschwander (LNLS, Campinas, Brazil); Renan Picoreti (LNLS, Campinas, Brazil); Volker R. W. Schaa (GSI, Darmstadt, Germany) |
Online ISBN |
978-3-95450-214-1 |
Online ISSN |
2673-5490 |
Received |
19 May 2021 |
Accepted |
23 June 2021 |
Issue Date |
28 August 2021 |
DOI |
doi:10.18429/JACoW-IPAC2021-THPAB198 |
Pages |
4160-4163 |
Copyright |
Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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