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Title: Conceptual design of a three-pole wiggler for the APS upgrade

Abstract

The current design of the Advanced Photon Source Upgrade (APS-U) project is a multi-bend achromat (MBA) lattice, which incorporates three-pole wigglers as radiation sources for the bending magnet beamlines. They are located in the short section between the M4 dipole and Q8 quadrupole magnets. Due to space constraints, a hybrid permanent magnet design is necessary to provide the required magnetic field strength. A three-pole wiggler with a flat peak field profile along the beam axis was designed to enhance the photon flux and flatten the transverse flux density distributions. The magnetic peak field at the center pole reached 1.08 Tesla for a magnetic gap of 26 mm. The maximum power density, integrated over all vertical angles, is 3.1 W/mm{sup 2}, which is substantially higher than that of the existing bending magnets at the APS (0.86 W/mm{sup 2}). Detailed designs of the three-pole wiggler is presented, including calculated spectral-angular flux distributions.

Authors:
; ; ;  [1]
  1. The Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439 (United States)
Publication Date:
OSTI Identifier:
22608306
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1741; Journal Issue: 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADVANCED PHOTON SOURCE; BEAMS; DESIGN; DIPOLES; DISTRIBUTION; FLUX DENSITY; LIMITING VALUES; MAGNETIC FIELDS; PERMANENT MAGNETS; PHOTONS; POWER DENSITY; WIGGLER MAGNETS

Citation Formats

Abliz, M., E-mail: mabliz@aps.anl.gov, Grimmer, J., E-mail: grimmer@aps.anl.gov, Dejus, R., and Ramanathan, M., E-mail: mohan@aps.anl.gov. Conceptual design of a three-pole wiggler for the APS upgrade. United States: N. p., 2016. Web. doi:10.1063/1.4952790.
Abliz, M., E-mail: mabliz@aps.anl.gov, Grimmer, J., E-mail: grimmer@aps.anl.gov, Dejus, R., & Ramanathan, M., E-mail: mohan@aps.anl.gov. Conceptual design of a three-pole wiggler for the APS upgrade. United States. doi:10.1063/1.4952790.
Abliz, M., E-mail: mabliz@aps.anl.gov, Grimmer, J., E-mail: grimmer@aps.anl.gov, Dejus, R., and Ramanathan, M., E-mail: mohan@aps.anl.gov. Wed . "Conceptual design of a three-pole wiggler for the APS upgrade". United States. doi:10.1063/1.4952790.
@article{osti_22608306,
title = {Conceptual design of a three-pole wiggler for the APS upgrade},
author = {Abliz, M., E-mail: mabliz@aps.anl.gov and Grimmer, J., E-mail: grimmer@aps.anl.gov and Dejus, R. and Ramanathan, M., E-mail: mohan@aps.anl.gov},
abstractNote = {The current design of the Advanced Photon Source Upgrade (APS-U) project is a multi-bend achromat (MBA) lattice, which incorporates three-pole wigglers as radiation sources for the bending magnet beamlines. They are located in the short section between the M4 dipole and Q8 quadrupole magnets. Due to space constraints, a hybrid permanent magnet design is necessary to provide the required magnetic field strength. A three-pole wiggler with a flat peak field profile along the beam axis was designed to enhance the photon flux and flatten the transverse flux density distributions. The magnetic peak field at the center pole reached 1.08 Tesla for a magnetic gap of 26 mm. The maximum power density, integrated over all vertical angles, is 3.1 W/mm{sup 2}, which is substantially higher than that of the existing bending magnets at the APS (0.86 W/mm{sup 2}). Detailed designs of the three-pole wiggler is presented, including calculated spectral-angular flux distributions.},
doi = {10.1063/1.4952790},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1741,
place = {United States},
year = {Wed Jul 27 00:00:00 EDT 2016},
month = {Wed Jul 27 00:00:00 EDT 2016}
}