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Power converters for the magnets of the Linac Warm Units of ESS

Visintini, Roberto; Cautero, Marco; Martins, Carlos LU ; Goransson, Goran and Collins, Max (2016) 42nd Conference of the Industrial Electronics Society, IECON 2016 In Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society p.3552-3557
Abstract

ESS, the European Spallation Source, will be a major user facility at which researchers from academia and industry will investigate scientific questions using neutron beams. ESS will deliver its protons to a solid, rotating tungsten target, which will in turn generate neutrons. A linear accelerator (Linac) creates protons at the ion source, accelerates them to an appropriate energy and steers them onto the target to create neutrons via the spallation process. Among the cryogenic accelerating sections, there are 'warm' magnets for correcting the proton beam 'optics'. This paper reports the chosen strategies for the power converters in these LWUs (Linac Warm Units). Amongst the power converters, we will highlight the 4-quadrant corrector... (More)

ESS, the European Spallation Source, will be a major user facility at which researchers from academia and industry will investigate scientific questions using neutron beams. ESS will deliver its protons to a solid, rotating tungsten target, which will in turn generate neutrons. A linear accelerator (Linac) creates protons at the ion source, accelerates them to an appropriate energy and steers them onto the target to create neutrons via the spallation process. Among the cryogenic accelerating sections, there are 'warm' magnets for correcting the proton beam 'optics'. This paper reports the chosen strategies for the power converters in these LWUs (Linac Warm Units). Amongst the power converters, we will highlight the 4-quadrant corrector magnets ones, based on a high precision and high bandwidth MOSFET H-bridge chopper, and a proposed novel topology for pulsed quadrupole magnets, instead of traditional DC ones. We will also demonstrate the interest of using pulsed magnets in place of DC ones in low duty-cycle Linacs, reducing the magnet losses and therefore the power consumption up- to 90%.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Magnet power converters, Neutron source, Particle accelerator
in
Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
pages
6 pages
publisher
IEEE Computer Society
conference name
42nd Conference of the Industrial Electronics Society, IECON 2016
external identifiers
  • scopus:85010051363
ISBN
9781509034741
DOI
10.1109/IECON.2016.7794102
language
English
LU publication?
yes
id
c1846239-5f16-403a-a021-a871d56fa545
date added to LUP
2017-03-28 10:46:10
date last changed
2017-03-28 10:46:10
@inproceedings{c1846239-5f16-403a-a021-a871d56fa545,
  abstract     = {<p>ESS, the European Spallation Source, will be a major user facility at which researchers from academia and industry will investigate scientific questions using neutron beams. ESS will deliver its protons to a solid, rotating tungsten target, which will in turn generate neutrons. A linear accelerator (Linac) creates protons at the ion source, accelerates them to an appropriate energy and steers them onto the target to create neutrons via the spallation process. Among the cryogenic accelerating sections, there are 'warm' magnets for correcting the proton beam 'optics'. This paper reports the chosen strategies for the power converters in these LWUs (Linac Warm Units). Amongst the power converters, we will highlight the 4-quadrant corrector magnets ones, based on a high precision and high bandwidth MOSFET H-bridge chopper, and a proposed novel topology for pulsed quadrupole magnets, instead of traditional DC ones. We will also demonstrate the interest of using pulsed magnets in place of DC ones in low duty-cycle Linacs, reducing the magnet losses and therefore the power consumption up- to 90%.</p>},
  author       = {Visintini, Roberto and Cautero, Marco and Martins, Carlos and Goransson, Goran and Collins, Max},
  booktitle    = {Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society},
  isbn         = {9781509034741},
  keyword      = {Magnet power converters,Neutron source,Particle accelerator},
  language     = {eng},
  month        = {12},
  pages        = {3552--3557},
  publisher    = {IEEE Computer Society},
  title        = {Power converters for the magnets of the Linac Warm Units of ESS},
  url          = {http://dx.doi.org/10.1109/IECON.2016.7794102},
  year         = {2016},
}