Magnetic Designs of New First Target Beamline Magnets for the ORNL SNS Upgrade

The Spallation Neutron Source (SNS) at ORNL currently is being upgraded from 1.0 GeV to 1.3 GeV. Several water-cooled magnets should be upgraded to transport 30% of higher beam energy. New chicane, injection/extraction septum, and Lambertson magnets were designed. Designing the magnets was a challen...

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Veröffentlicht in:IEEE transactions on applied superconductivity Jg. 32; H. 6; S. 1 - 4
Hauptverfasser: Kashikhin, V., Amann, J., Evans, N., Harding, D., Holmes, J., Plum, M., Pomella, D.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.09.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
3d field maps
accelerator magnets
additional strong requirements
beam handling equipment
beam handling techniques
beam optics simulations
Chicane magnets
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
electron accelerators
Foils
good combined integrated field quality
greater integrated magnetic field
Harmonic analysis
Harmonics
higher beam energy
integrated field components
integrated field harmonics
Lambertson magnet
lambertson magnets
linear accelerators
Magnetic analysis
magnetic designs
magnetic fields
Magnetic noise
Magnetic shielding
Magnetic tunneling
Magnets
magnets fringe field
neutron sources
Neutrons
old magnets space
OPERA3D simulations
ornl sns upgrade
particle beam diagnostics
particle beam extraction
particle beam injection
Particle tracking
proton accelerators
Saturation magnetization
Septum
septum magnet
Simulation
Spallation
spallation neutron source
special field profiles
Superconducting magnets
synchrotrons
target beamline magnets
water-cooled magnets
ISSN:1051-8223, 1558-2515
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Zusammenfassung:The Spallation Neutron Source (SNS) at ORNL currently is being upgraded from 1.0 GeV to 1.3 GeV. Several water-cooled magnets should be upgraded to transport 30% of higher beam energy. New chicane, injection/extraction septum, and Lambertson magnets were designed. Designing the magnets was a challenging task because the new magnets required good combined integrated field quality and needed to occupy the old magnets space but with about 20% greater integrated magnetic field. Additional strong requirements applied to the magnets fringe field do not disturb the circulating beam. The special field profiles had to be provided in foil areas between magnets. The analysis described here was based on OPERA3D simulations. A special technique was used for analyzing the integrated field harmonics. Initially, the particle track was simulated, and integrated field components were calculated along this track for the reference radius, which were used for the harmonics analysis. In addition, 3D field maps were provided for beam optics simulations. The final beamline analysis confirmed good beam transmission and low losses.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
FERMILAB-CONF-22-068-TD; THU-PO3-117-07
AC02-07CH11359
USDOE Office of Science (SC), High Energy Physics (HEP)
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2022.3153439