2011 Particle Accelerator Conference - List of Keywords (magnet-design)

Paper	Title	Other Keywords	Page
WEOCS2	Development of Nb3Sn 11 T Single Aperture Demonstrator Dipole for LHC Upgrades	dipole, collimation, multipole, injection	1460
	A.V. Zlobin, N. Andreev, G. Apollinari, E.Z. Barzi, V. Kashikhin, A. Nobrega, I. Novitski Fermilab, Batavia, USA B. Auchmann, M. Karppinen, L. Rossi CERN, Geneva, Switzerland
	Funding: Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy The LHC collimation upgrade foresees additional collimators installed in dispersion suppressor regions. To obtain the necessary space for the collimators, a solution based on the substitution of LHC main dipoles for stronger dipoles is being considered. CERN and FNAL have started a joint program to demonstrate the feasibility of Nb3Sn technology for this purpose. The goal of the first phase is the design and construction of a 2-m long single-aperture demonstrator magnet with a nominal field of 11 T at 11.85 kA with 20% margin. This paper describes the magnetic and mechanical design of the demonstrator magnet and summarizes its design parameters.
	Slides WEOCS2 [2.523 MB]

WEP017	Re-Examination of the NSLS-II Magnet Multipole Specifications	multipole, sextupole, quadrupole, lattice	1531
	W. Guo, A.K. Jain, S. Krinsky, S. Seiler, J. Skaritka, C.J. Spataro BNL, Upton, Long Island, New York, USA
	Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy The NSLS-II magnet multipole specifications were determined based on analysis of nonlinear beam dynamics. The required field quality does not exceed what was specified for the existing third-generation light sources. While the prototype magnets have met these specifications, the magnets from mass production could potentially have bigger errors which exceed certain tolerances. In this paper we discuss the results of recent calculations to provide further insight into the acceptable range of the magnet multipoles based on the physics requirements.

WEP064	Beam Dynamics Study of the Intermediate Energy X-Ray Wiggler for the Advanced Photon Source	wiggler, simulation, undulator, electron	1594
	A. Xiao, M. Borland, L. Emery, M.S. Jaski, V. Sajaev ANL, Argonne, USA
	Funding: Work supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. An intermediate-energy x-ray (IEX) helical wiggler is planned for the APS storage ring. Because of its high field and rapid field roll-off, the disturbance to the beam dynamics is large and needs to be well understood before the installation. We present a new method of fitting the magnetic field to an analytical wiggler model, which simplifies the usual nonlinear fitting problem and guarantees the best fit. The fitting method was validated by comparison to an analytical method.

Paper

Title

Other Keywords

Page

WEOCS2

Development of Nb3Sn 11 T Single Aperture Demonstrator Dipole for LHC Upgrades

dipole, collimation, multipole, injection

1460

A.V. Zlobin, N. Andreev, G. Apollinari, E.Z. Barzi, V. Kashikhin, A. Nobrega, I. Novitski
Fermilab, Batavia, USA
B. Auchmann, M. Karppinen, L. Rossi
CERN, Geneva, Switzerland

Funding: Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy
The LHC collimation upgrade foresees additional collimators installed in dispersion suppressor regions. To obtain the necessary space for the collimators, a solution based on the substitution of LHC main dipoles for stronger dipoles is being considered. CERN and FNAL have started a joint program to demonstrate the feasibility of Nb3Sn technology for this purpose. The goal of the first phase is the design and construction of a 2-m long single-aperture demonstrator magnet with a nominal field of 11 T at 11.85 kA with 20% margin. This paper describes the magnetic and mechanical design of the demonstrator magnet and summarizes its design parameters.

Slides WEOCS2 [2.523 MB]

WEP017

Re-Examination of the NSLS-II Magnet Multipole Specifications

multipole, sextupole, quadrupole, lattice

1531

W. Guo, A.K. Jain, S. Krinsky, S. Seiler, J. Skaritka, C.J. Spataro
BNL, Upton, Long Island, New York, USA

Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy
The NSLS-II magnet multipole specifications were determined based on analysis of nonlinear beam dynamics. The required field quality does not exceed what was specified for the existing third-generation light sources. While the prototype magnets have met these specifications, the magnets from mass production could potentially have bigger errors which exceed certain tolerances. In this paper we discuss the results of recent calculations to provide further insight into the acceptable range of the magnet multipoles based on the physics requirements.

WEP064

Beam Dynamics Study of the Intermediate Energy X-Ray Wiggler for the Advanced Photon Source

wiggler, simulation, undulator, electron

1594

A. Xiao, M. Borland, L. Emery, M.S. Jaski, V. Sajaev
ANL, Argonne, USA

Funding: Work supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
An intermediate-energy x-ray (IEX) helical wiggler is planned for the APS storage ring. Because of its high field and rapid field roll-off, the disturbance to the beam dynamics is large and needs to be well understood before the installation. We present a new method of fitting the magnetic field to an analytical wiggler model, which simplifies the usual nonlinear fitting problem and guarantees the best fit. The fitting method was validated by comparison to an analytical method.