| Title |
Horizontal-Gap Vertically-Polarizing Undulator (HGVPU) Design Challenges and Resolutions |
| Authors |
- O.A. Schmidt, E. Gluskin, D.P. Jensen Jr., G. Pile, N.O. Strelnikov, K.J. Suthar, E. Trakhtenberg, I. Vasserman, J.Z. Xu
ANL, Argonne, Illinois, USA
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| Abstract |
The Horizontal-Gap Vertically-Polarizing Undulator (HGVPU) is a compact, innovative, variable-gap insertion device developed by Argonne National Laboratory for the LCLS-II HXR beamline at SLAC. A full sized 3.4-meter-long prototype has been built and fully tested meeting all LCLS-II undulator specifications. An array of conical springs compensates the attractive magnetic forces of the undulator jaws. These springs are designed to exhibit non-linear spring characteristics that can be closely tuned to match the force curve exerted by the magnetic field, thereby minimizing the overall deflection of the strongbacks. The HGVPU also utilizes the existing LCLS-I support and motion system along with other existing equipment and infrastructure, thus lowering overall cost and installation downtime.
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| Paper |
download WECA04.PDF [1.485 MB / 5 pages] |
| Slides |
download WECA04_TALK.PDF [12.616 MB] |
| Export |
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| Conference |
MEDSI2016 |
| Series |
Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation Conference (9th) |
| Location |
Barcelona, Spain |
| Date |
11-16 September 2016 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Joan Casas (ALBA-CELLS, Cerdanyola del Vallès, Spain); Volker RW Schaa (GSI, Darmstadt, Germany); Isidre Costa (ALBA-CELLS, Cerdanyola del Vallès, Spain); David López (ALBA-CELLS, Cerdanyola del Vallès, Spain); Montserrat Prieto (ALBA-CELLS, Cerdanyola del Vallès, Spain) |
| Online ISBN |
978-3-95450-188-5 |
| Received |
10 September 2016 |
| Accepted |
03 October 2016 |
| Issue Date |
22 June 2017 |
| DOI |
doi:10.18429/JACoW-MEDSI2016-WECA04 |
| Pages |
288-292 |
| 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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