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Full-scale compact APPLE X prototype undulator at MAX IV - characterization and measurements results

Tarawneh, H. LU ; Holz, M. LU orcid and Roslund, L. LU (2025) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1072.
Abstract

We have developed and built a full-scale, compact APPLE X undulator prototype, intended for use at single-pass machines and fourth-generation storage rings where a small round vacuum chamber can be accommodated. It uses permanent magnets and features a very compact mechanical structure. The undulator is a photon source with full polarization control. The compactness of its structure reduces the overall costs and weight considerably, compared to classical Insertion Devices with C-shaped frames. We show that the prototype fulfills all required specifications, which makes it a feasible light source. We find that it is advantageous to shim the magnets while the undulator is in circular polarization mode, thereby halving the transverse... (More)

We have developed and built a full-scale, compact APPLE X undulator prototype, intended for use at single-pass machines and fourth-generation storage rings where a small round vacuum chamber can be accommodated. It uses permanent magnets and features a very compact mechanical structure. The undulator is a photon source with full polarization control. The compactness of its structure reduces the overall costs and weight considerably, compared to classical Insertion Devices with C-shaped frames. We show that the prototype fulfills all required specifications, which makes it a feasible light source. We find that it is advantageous to shim the magnets while the undulator is in circular polarization mode, thereby halving the transverse magnetic forces and reducing mechanical deformation during magnet shimming. In this paper, we present the characterization of the prototype undulator supported by experimental and simulation results.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
APPLE X, Prototype, Soft X-ray, SXL, Undulator
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
1072
article number
170162
publisher
Elsevier
external identifiers
  • scopus:85212403667
ISSN
0168-9002
DOI
10.1016/j.nima.2024.170162
language
English
LU publication?
yes
id
64d53083-9ca5-49e6-becf-dcf20ad2150d
date added to LUP
2025-02-28 11:54:28
date last changed
2025-04-04 15:18:07
@article{64d53083-9ca5-49e6-becf-dcf20ad2150d,
  abstract     = {{<p>We have developed and built a full-scale, compact APPLE X undulator prototype, intended for use at single-pass machines and fourth-generation storage rings where a small round vacuum chamber can be accommodated. It uses permanent magnets and features a very compact mechanical structure. The undulator is a photon source with full polarization control. The compactness of its structure reduces the overall costs and weight considerably, compared to classical Insertion Devices with C-shaped frames. We show that the prototype fulfills all required specifications, which makes it a feasible light source. We find that it is advantageous to shim the magnets while the undulator is in circular polarization mode, thereby halving the transverse magnetic forces and reducing mechanical deformation during magnet shimming. In this paper, we present the characterization of the prototype undulator supported by experimental and simulation results.</p>}},
  author       = {{Tarawneh, H. and Holz, M. and Roslund, L.}},
  issn         = {{0168-9002}},
  keywords     = {{APPLE X; Prototype; Soft X-ray; SXL; Undulator}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}},
  title        = {{Full-scale compact APPLE X prototype undulator at MAX IV - characterization and measurements results}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2024.170162}},
  doi          = {{10.1016/j.nima.2024.170162}},
  volume       = {{1072}},
  year         = {{2025}},
}