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Title: Vertically polarizing undulator with dynamic compensation of magnetic forces

As part of the R&D program of the LCLS-II project, a novel 3.4-meter-long undulator prototype with horizontal magnetic field and dynamic force compensation has recently been developed at the Advanced Photon Source (APS). Some previous steps in this development were the shorter 0.8-meter-long and 2.8-meter-long prototypes. Extensive mechanical and magnetic testing was carried out for each prototype, and each prototype was magnetically tuned using magnetic shims. Furthermore, the resulting performance of the 3.4-meter-long undulator prototype meets all requirements for the LCLS-II insertion device, including limits on the field integrals, phase errors, higher-order magnetic moments, and electron-beam trajectory for all operational gaps, as well as the reproducibility and accuracy of the gap settings.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation). Budker Inst. of Nuclear Physics (BINP)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 20; Journal Issue: 1; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS
OSTI Identifier:
1341264
Alternate Identifier(s):
OSTI ID: 1393494

Strelnikov, N., Vasserman, I., Xu, J., Jensen, D., Schmidt, O., Trakhtenberg, E., Suthar, K., Moog, E. R., Pile, G., and Gluskin, E.. Vertically polarizing undulator with dynamic compensation of magnetic forces. United States: N. p., Web. doi:10.1103/PhysRevAccelBeams.20.010701.
Strelnikov, N., Vasserman, I., Xu, J., Jensen, D., Schmidt, O., Trakhtenberg, E., Suthar, K., Moog, E. R., Pile, G., & Gluskin, E.. Vertically polarizing undulator with dynamic compensation of magnetic forces. United States. doi:10.1103/PhysRevAccelBeams.20.010701.
Strelnikov, N., Vasserman, I., Xu, J., Jensen, D., Schmidt, O., Trakhtenberg, E., Suthar, K., Moog, E. R., Pile, G., and Gluskin, E.. 2017. "Vertically polarizing undulator with dynamic compensation of magnetic forces". United States. doi:10.1103/PhysRevAccelBeams.20.010701.
@article{osti_1341264,
title = {Vertically polarizing undulator with dynamic compensation of magnetic forces},
author = {Strelnikov, N. and Vasserman, I. and Xu, J. and Jensen, D. and Schmidt, O. and Trakhtenberg, E. and Suthar, K. and Moog, E. R. and Pile, G. and Gluskin, E.},
abstractNote = {As part of the R&D program of the LCLS-II project, a novel 3.4-meter-long undulator prototype with horizontal magnetic field and dynamic force compensation has recently been developed at the Advanced Photon Source (APS). Some previous steps in this development were the shorter 0.8-meter-long and 2.8-meter-long prototypes. Extensive mechanical and magnetic testing was carried out for each prototype, and each prototype was magnetically tuned using magnetic shims. Furthermore, the resulting performance of the 3.4-meter-long undulator prototype meets all requirements for the LCLS-II insertion device, including limits on the field integrals, phase errors, higher-order magnetic moments, and electron-beam trajectory for all operational gaps, as well as the reproducibility and accuracy of the gap settings.},
doi = {10.1103/PhysRevAccelBeams.20.010701},
journal = {Physical Review Accelerators and Beams},
number = 1,
volume = 20,
place = {United States},
year = {2017},
month = {1}
}