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The multi-bend achromat storage rings

Eriksson, Mikael LU (2016) 12th International Conference on Synchrotron Radiation Instrumentation (SRI 2015) In Proceedings of the 12th International Conference on Synchrotron Radiation Instrumentation, SRI 2015 1741.
Abstract

Not very long ago, the 3rd generation storage ring technology was judged as mature. Most of the 3rd generation storage rings used the Double-Bend Achromat (DBA) or Triple-Bend Achromat (TBA) concepts. It was however a well-known fact that increasing the number of magnet cells in the rings is a powerful way of decreasing the electron beam emittance and thus the source brilliance, but at the penalty of increasing the size and cost of the rings. Preserving the Dynamic Aperture (DA) in the rings became also an issue when increasing the number of magnet cells. The Multi-Bend Achromat (MBA) concept, including a miniaturization of the ring elements, has now drastically changed the picture. The MBA rings, now in... (More)

Not very long ago, the 3rd generation storage ring technology was judged as mature. Most of the 3rd generation storage rings used the Double-Bend Achromat (DBA) or Triple-Bend Achromat (TBA) concepts. It was however a well-known fact that increasing the number of magnet cells in the rings is a powerful way of decreasing the electron beam emittance and thus the source brilliance, but at the penalty of increasing the size and cost of the rings. Preserving the Dynamic Aperture (DA) in the rings became also an issue when increasing the number of magnet cells. The Multi-Bend Achromat (MBA) concept, including a miniaturization of the ring elements, has now drastically changed the picture. The MBA rings, now in construction or being planned, offer orders of magnitudes higher brilliance than rings of conventional designs. Several light sources around the world are now implementing or planning to implement this MBA concept. This article touches on the science drivers for higher brilliance. We will then describe the MBA concept with its advantages as well as its challenges. A short survey of the MBA activity around the world will also be presented. The author apologies for focusing on the MAX IV project regarding technical solutions. This is motivated by that MAX IV is the facility he knows best and it might be regarded as a fore-runner for the MBA concept.

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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the 12th International Conference on Synchrotron Radiation Instrumentation, SRI 2015
volume
1741
publisher
American Institute of Physics Inc.
conference name
12th International Conference on Synchrotron Radiation Instrumentation (SRI 2015)
external identifiers
  • scopus:84984562947
ISBN
9780735413986
DOI
10.1063/1.4952780
language
English
LU publication?
yes
id
df177ca3-8345-43e5-933d-bb14d32a5688
date added to LUP
2016-12-19 15:01:40
date last changed
2017-01-01 08:43:51
@inproceedings{df177ca3-8345-43e5-933d-bb14d32a5688,
  abstract     = {<p>Not very long ago, the 3<sup>rd</sup> generation storage ring technology was judged as mature. Most of the 3<sup>rd</sup> generation storage rings used the Double-Bend Achromat (DBA) or Triple-Bend Achromat (TBA) concepts. It was however a well-known fact that increasing the number of magnet cells in the rings is a powerful way of decreasing the electron beam emittance and thus the source brilliance, but at the penalty of increasing the size and cost of the rings. Preserving the Dynamic Aperture (DA) in the rings became also an issue when increasing the number of magnet cells. The Multi-Bend Achromat (MBA) concept, including a miniaturization of the ring elements, has now drastically changed the picture. The MBA rings, now in construction or being planned, offer orders of magnitudes higher brilliance than rings of conventional designs. Several light sources around the world are now implementing or planning to implement this MBA concept. This article touches on the science drivers for higher brilliance. We will then describe the MBA concept with its advantages as well as its challenges. A short survey of the MBA activity around the world will also be presented. The author apologies for focusing on the MAX IV project regarding technical solutions. This is motivated by that MAX IV is the facility he knows best and it might be regarded as a fore-runner for the MBA concept.</p>},
  author       = {Eriksson, Mikael},
  booktitle    = {Proceedings of the 12th International Conference on Synchrotron Radiation Instrumentation, SRI 2015},
  isbn         = {9780735413986},
  language     = {eng},
  month        = {07},
  publisher    = {American Institute of Physics Inc.},
  title        = {The multi-bend achromat storage rings},
  url          = {http://dx.doi.org/10.1063/1.4952780},
  volume       = {1741},
  year         = {2016},
}