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Title: SEPTUM MAGNET DESIGN FOR THE APS-U

Abstract

The Advanced Photon Source is in the process of upgrading its storage ring from a double-bend to a multi-bend lattice as part of the APS Upgrade Project (APS-U). A swap-out injection scheme is planned for the APS-U to keep a constant beam current and to enable a small dynamic aperture. A septum magnet with a minimum thickness of 2 mm and an injection field of 1.06 T has been designed, delivering the required total deflecting angle is 89 mrad with a ring energy of 6 GeV. The stored beam chamber has an 8 mm x 6 mm super-ellipsoidal aperture. The magnet is straight; however, it is tilted in yaw, roll, and pitch from the stored beam chamber to meet the on axis swap out injection requirements for the APS-U lattice. In order to minimize the leakage field inside the stored beam chamber, four different techniques were utilized in the design. As a result, the horizontal deflecting angle of the stored beam was held to only 5 µrad, and the integrated skew quadrupole inside the stored beam chamber was held to 0.09 T. The detailed techniques that were applied to the design, field multipoles, and resulting trajectories of the injected andmore » stored beams are reported.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1394615
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 2016 North American Particle Accelerator Conference, 10/09/16 - 10/14/16, Chicago, IL, US
Country of Publication:
United States
Language:
English

Citation Formats

Abliz, M., Jaski, M., Xiao, A., Wienands, U., Cease, H., Borland, M., Decker, G., and Kerby, J. SEPTUM MAGNET DESIGN FOR THE APS-U. United States: N. p., 2017. Web.
Abliz, M., Jaski, M., Xiao, A., Wienands, U., Cease, H., Borland, M., Decker, G., & Kerby, J. SEPTUM MAGNET DESIGN FOR THE APS-U. United States.
Abliz, M., Jaski, M., Xiao, A., Wienands, U., Cease, H., Borland, M., Decker, G., and Kerby, J. Sun . "SEPTUM MAGNET DESIGN FOR THE APS-U". United States. doi:. https://www.osti.gov/servlets/purl/1394615.
@article{osti_1394615,
title = {SEPTUM MAGNET DESIGN FOR THE APS-U},
author = {Abliz, M. and Jaski, M. and Xiao, A. and Wienands, U. and Cease, H. and Borland, M. and Decker, G. and Kerby, J.},
abstractNote = {The Advanced Photon Source is in the process of upgrading its storage ring from a double-bend to a multi-bend lattice as part of the APS Upgrade Project (APS-U). A swap-out injection scheme is planned for the APS-U to keep a constant beam current and to enable a small dynamic aperture. A septum magnet with a minimum thickness of 2 mm and an injection field of 1.06 T has been designed, delivering the required total deflecting angle is 89 mrad with a ring energy of 6 GeV. The stored beam chamber has an 8 mm x 6 mm super-ellipsoidal aperture. The magnet is straight; however, it is tilted in yaw, roll, and pitch from the stored beam chamber to meet the on axis swap out injection requirements for the APS-U lattice. In order to minimize the leakage field inside the stored beam chamber, four different techniques were utilized in the design. As a result, the horizontal deflecting angle of the stored beam was held to only 5 µrad, and the integrated skew quadrupole inside the stored beam chamber was held to 0.09 T. The detailed techniques that were applied to the design, field multipoles, and resulting trajectories of the injected and stored beams are reported.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jun 25 00:00:00 EDT 2017},
month = {Sun Jun 25 00:00:00 EDT 2017}
}

Conference:
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